US20050064813A1 - Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint - Google Patents
Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint Download PDFInfo
- Publication number
- US20050064813A1 US20050064813A1 US10/932,810 US93281004A US2005064813A1 US 20050064813 A1 US20050064813 A1 US 20050064813A1 US 93281004 A US93281004 A US 93281004A US 2005064813 A1 US2005064813 A1 US 2005064813A1
- Authority
- US
- United States
- Prior art keywords
- satellite
- satellite communications
- aggregate
- radiated power
- footprint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- This invention relates to radioterminal communications systems and methods, and more particularly to terrestrial and satellite radioterminal communications systems and methods.
- Satellite radioterminal communications systems and methods are widely used for radioterminal communications. Satellite radioterminal communications systems and methods generally employ at least one space-based component, such as one or more satellites, that is/are configured to wirelessly communicate with a plurality of satellite radioterminals.
- a satellite radioterminal communications system or method may utilize a single antenna beam covering an entire area served by the system.
- multiple beams are provided, each of which can serve distinct geographical areas in the overall service region, to collectively serve an overall satellite footprint.
- a cellular architecture similar to that used in conventional terrestrial cellular radioterminal systems and methods can be implemented in cellular satellite-based systems and methods.
- the satellite typically communicates with radioterminals over a bidirectional communications pathway, with radioterminal communication signals being communicated from the satellite to the radioterminal over a downlink or forward link, and from the radioterminal to the satellite over an uplink or return link.
- radioterminal includes cellular and/or satellite radioterminals with or without a multi-line display; Personal Communications System (PCS) terminals that may combine a radioterminal with data processing, facsimile and/or data communications capabilities; Personal Digital Assistants (PDA) that can include a radio frequency transceiver and a pager, Internet/Intranet access, Web browser, organizer, calendar and/or a global positioning system (GPS) receiver; and/or conventional laptop and/or palmtop computers or other appliances, which include a radio frequency transceiver.
- PCS Personal Communications System
- PDA Personal Digital Assistants
- GPS global positioning system
- the term “radioterminal” also includes any other radiating user device/equipment/source that may have time-varying or fixed geographic coordinates, and may be portable, transportable, installed in a vehicle (aeronautical, maritime, or land-based), or situated and/or configured to operate locally and/or in a distributed fashion at any other location(s) on earth and/or in space.
- a “radioterminal” also may be referred to herein as a “radiotelephone,” “terminal” or “wireless user device”.
- Terrestrial networks can enhance cellular satellite radioterminal system availability, efficiency and/or economic viability by terrestrially reusing at least some of the frequency bands that are allocated to cellular satellite radioterminal systems.
- the satellite spectrum may be underutilized or unutilized in such areas.
- the terrestrial reuse of the satellite system frequencies can reduce or eliminate this potential problem.
- the capacity of the overall system may be increased by the introduction of terrestrial frequency reuse of the satellite system frequencies, since terrestrial frequency reuse may be much denser than that of a satellite-only system.
- capacity may be enhanced where it may be mostly needed, i.e., in densely populated urban/industrial/commercial areas.
- the overall system may become more economically viable, as it may be able to serve more effectively and reliably a larger subscriber base.
- U.S. Pat. No. 6,684,057 to Karabinis, entitled Systems and Methods for Terrestrial Reuse of Cellular Satellite Frequency Spectrum, the disclosure of which is hereby incorporated herein by reference in its entirety as if set forth fully herein, describes that a satellite frequency can be reused terrestrially by an ancillary terrestrial network even within the same satellite cell, using interference cancellation techniques.
- a system according to some embodiments of U.S. Pat. No. 6,684,057 includes a space-based component that is configured to receive wireless communications from a first radiotelephone in a satellite footprint over a satellite radiotelephone frequency band, and an ancillary terrestrial network that is configured to receive wireless communications from a second radiotelephone in the satellite footprint over the satellite radiotelephone frequency band.
- the space-based component also receives the wireless communications from the second radiotelephone in the satellite footprint over the satellite radiotelephone frequency band as interference, along with the wireless communications that are received from the first radiotelephone in the satellite footprint over the satellite radiotelephone frequency band.
- An interference reducer is responsive to the space-based component and to the ancillary terrestrial network that is configured to reduce the interference from the wireless communications that are received by the space-based component from the first radiotelephone in the satellite footprint over the satellite radiotelephone frequency band, using the wireless communications that are received by the ancillary terrestrial network from the second radiotelephone in the satellite footprint over the satellite radiotelephone frequency band.
- United States Patent Application Publication No. 2003/0054761 A1 published Mar. 20, 2003 to Karabinis, entitled Spatial Guardbands for Terrestrial Reuse of Satellite Frequencies, the disclosure of which is hereby incorporated herein by reference in its entirety as if set forth fully herein, describes satellite radiotelephone systems that include a space-based component that is configured to provide wireless radiotelephone communications in a satellite footprint over a satellite radiotelephone frequency band.
- the satellite footprint is divided into a plurality of satellite cells, in which satellite radiotelephone frequencies of the satellite radiotelephone frequency band are spatially reused.
- An ancillary terrestrial network is configured to terrestrially reuse at least one of the satellite radiotelephone frequencies that is used in a satellite cell in the satellite footprint, outside the cell and in some embodiments separated therefrom by a spatial guardband.
- the spatial guardband may be sufficiently large to reduce or prevent interference between the at least one of the satellite radiotelephone frequencies that is used in the satellite cell in the satellite footprint, and the at least one of the satellite radiotelephone frequencies that is terrestrially reused outside the satellite cell and separated therefrom by the spatial guardband.
- the spatial guardband may be about half a radius of a satellite cell in width.
- Satellite radioterminal communications systems and methods that may employ terrestrial reuse of satellite frequencies are also described in Published U.S. Patent Application Nos. US 2003/0054760 to Karabinis, entitled Systems and Methods for Terrestrial Reuse of Cellular Satellite Frequency Spectrum; US 2003/0054814 to Karabinis et al., entitled Systems and Methods for Monitoring Terrestrially Reused Satellite Frequencies to Reduce Potential Interference; US 2003/0054762 to Karabinis, entitled Multi-Band/Multi-Mode Satellite Radiotelephone Communications Systems and Methods; US 2003/0153267 to Karabinis, entitled Wireless Communications Systems and Methods Using Satellite-Linked Remote Terminal Interface Subsystems; US 2003/0224785 to Karabinis, entitled Systems and Methods for Reducing Satellite Feeder Link Bandwidth/Carriers In Cellular Satellite Systems; US 2002/0041575 to Karabinis et al., entitled Coordinated Satellite-Terrestrial Frequency Reuse; US 2002/0090942 to Karabinis et al., entitled
- the satellite radioterminal spectrum may become more crowded.
- the downlink L-band satellite radioterminal spectrum ranges from 1525-1559 MHz
- the uplink L-band satellite spectrum ranges from 1626.5-1660.5 MHz.
- Inter- and intra-government relationships have allocated this frequency spectrum among multiple satellite radioterminal communications systems, including that of Inmarsat, Mobile Satellite Ventures (MSV), Mexico, Russia, Search and Rescue (SAR) and Radio-At-Sea (RAS).
- MMV Mobile Satellite Ventures
- SAR Search and Rescue
- RAS Radio-At-Sea
- a satellite communications system may be desirable for a satellite communications system to include multiple large, continuous bands of spectrum, for example up to 5 MHz or more continuous bands of spectrum, so as to allow, for example, wideband technologies, such as Wideband CDMA (WCDMA), to be used.
- WCDMA Wideband CDMA
- the present spectrum allocations to each of the L-band systems cited above include many small frequency band slices, and may not include any, or may only include a small number of, frequency bands that are 5 MHz or more wide.
- a first satellite radioterminal communications system provides satellite radiotelephone communications to a first set of radioterminals over a first satellite radioterminal frequency band in a first footprint, such as may be provided by a global beam and/or spot beams.
- a second satellite radioterminal communications system provides radioterminal communications to a second set of radioterminals that may also be responsive to ancillary terrestrial components, over at least some frequencies of the first satellite radioterminal frequency band, in a second footprint that overlaps with the first footprint.
- the aggregate Effective Isotropic Radiated Power (EIRP) of the second set of radioterminals and/or ancillary terrestrial components is sufficiently low, and/or the receive antenna gain of the first satellite radioterminal communications system is sufficiently low compared to the receive antenna gain of the second satellite radioterminal communications system, so as to increase the aggregate receiver noise that is seen by the first satellite system receivers by an amount that need not unduly impact the first satellite radioterminal communications system, i.e., does not substantially change (including no change) the Quality of Service (QoS) of the first satellite radioterminal communications system.
- QoS Quality of Service
- the first satellite receive antenna gain may be sufficiently low relative to the second satellite receive antenna gain, and the aggregate EIRP of the radioterminals and/or ancillary terrestrial components may be sufficiently low, so as to increase the aggregate noise that is seen by the first satellite receive antenna by an amount that need not unduly impact QoS of the first satellite radioterminal communications system.
- one or more satellite radioterminal communications frequencies may be shared by a plurality of satellite radioterminal communications systems over a geographically overlapping footprint without the need to unduly impact performance of either system.
- relatively large continuous frequency bands may be assembled for the first and/or second satellite radiotelephone communications systems to allow, for example, WCDMA technology, or any other broadband technology, to be used.
- FIGS. 1 and 2 are schematic diagrams of satellite radioterminal systems and methods according to embodiments of the present invention.
- FIG. 1 illustrates first and second satellite radioterminal communications systems that are configured for satellite radioterminal communications frequency sharing within a common footprint according to some embodiments of the present invention.
- a first satellite radioterminal communications system includes a first satellite 100 that communicates over a first satellite radioterminal frequency band f 1 (that may include one or more contiguous and/or discontiguous satellite radioterminal communications frequencies) over a first footprint 110 that may include a global beam and/or spot beams (not shown).
- f 1 that may include one or more contiguous and/or discontiguous satellite radioterminal communications frequencies
- first footprint 110 may include a global beam and/or spot beams (not shown).
- the first satellite radioterminal communications system may include multiple first satellites 100 , which are not shown for simplicity.
- the first satellite radioterminal communications system may be embodied, for example, in the well known Inmarsat satellite radioterminal communications system.
- a second satellite radioterminal communications system includes a second satellite 200 that provides satellite radioterminal communications with radioterminals 220 that may also be responsive and operative with Ancillary Terrestrial Components (ATCs) 230 over the first satellite radioterminal frequency band f 1 in a second footprint 210 , such as a spot beam footprint, that at least partially overlaps the first footprint 110 , using a second satellite receive antenna gain g 2 that is higher than a first satellite receive antenna gain g 1 of the first satellite radioterminal system. In some embodiments, at least about 20 dB gain difference is present.
- ATCs Ancillary Terrestrial Components
- the second satellite radioterminal system may include more than one second satellite 200 , and more than one spot beam, and may communicate with large numbers of radioterminals 220 and/or ancillary terrestrial components 230 .
- the footprint 110 may be any footprint that is larger than the second footprint 210 and, in some embodiments, may span up to a hemisphere of the globe.
- the second satellite radioterminal communications system may be embodied, for example, in a satellite radioterminal communications system that is provided by Mobile Satellite Ventures (MSV), the assignee of the present invention, that is described, for example, in any or all the above-cited U.S. Pat. No. 6,684,057 and U.S. Patent Application Publications.
- MSV Mobile Satellite Ventures
- the gain g 1 of the receive antenna of the first satellite 100 may be sufficiently small relative to the gain g 2 of the receive antenna of the second satellite 200 , such that relatively low EIRP may be radiated by the radioterminals 220 and/or ATCs 230 of the second satellite system.
- the relatively low EIRP of the radioterminals 220 and/or ATCs 230 , and the relatively low gain g 1 of the receive antenna of the first satellite 100 can allow the same frequency band f 1 to be used in a geographically overlapping area, such as the area of the second footprint 210 , without unduly increasing an equivalent noise that is seen by the receive antenna of the first satellite 100 , i.e., without substantially changing (or changing at all) the QoS of the first satellite radioterminal system.
- the low sensitivity of the global beam and/or spot beam(s) of the first satellite 100 relative to the power level transmitted by the radioterminals 220 and/or ATCs 230 can reduce the interference that is seen by the first satellite radioterminal system to an acceptable level.
- the uplink interference from the radioterminals of the first satellite system to the satellite receivers of the second satellite system also may be reduced, for example, by using interference-reducing systems or methods, such as are described in Provisional patent application Ser. No. 60/490,993, entitled Intra- and/or Inter-System Interference Reducing Systems and Methods for Satellite Communications Systems to the present inventor Karabinis et al., filed Jul. 30, 2003, and U.S. patent application Ser. No.
- interference also may be reduced based on the inherent discrimination of the spot beams and/or on the inherent discrimination that may be provided by the spatial separation between the first and second satellites 100 and 200 .
- Table 1 provides an analysis of the impact of a spot beam of the second satellite system on an uplink of a global-beam of the first satellite system.
- the first satellite system is the Inmarsat satellite system and the second satellite system is the MSV satellite system.
- Table 2 provides an analysis on the impact of radioterminals operative with ancillary terrestrial components 230 on a satellite receiver of Inmarsat's global beam. As shown in Table 2, a 3.25% aggregate percent noise increase may be produced.
- Table 2 PARAMETER UNITS VALUE Illustrative MSV Terminal EIRP dBW ⁇ 13 MSV Carrier Bandwidth MHz 5 (illustrative of W-CDMA) MSV Terminal EIRP Density dBW/Hz ⁇ 80 Illustrative number of users (Codes) dB 57.9 Supported by a single Carrier as the carrier is used and reused ATC-Wide (616,595) Aggregate EIRP Density dBW/Hz ⁇ 22.1 Emitted ATC-Wide Illustrative Average EIRP Reduction dB 20 due to Power Control Illustrative Average EIRP Reduction dB 1 due to Voice Activity Illustrative Linear to dB 1.4 RHCP Discrimination Approximate Free
- the Inmarsat satellite beam 110 that may be impacted from spectrum sharing with MSV's (second) satellite system, may be serving maritime users.
- the second satellite system may be designed so as not to deploy the shared spectrum over any or at least some of its satellite beams 210 that are formed on or close to waterways.
- a separation of at least two widths of a spot beam may be maintained between a waterway and the locations where the second satellite system 200 deploys the shared spectrum over its forward satellite spots beams. This can afford significant discrimination (for example, 25 dB of spot beam discrimination) relative to a maritime first satellite system radioterminal that may also be using the shared frequencies.
- the ancillary terrestrial components 230 can reuse the shared forward link spectrum far enough away from waterways so that the aggregate effect of the ATCs on the receiver of a maritime radioterminal of the first system can be negligible (for example, less than 1% aggregate noise increase).
- An example downlink analysis, where the first system is an Inmarsat system and the second system is an MSV system is provided in Table 3. As shown, a 5% aggregate noise increase is produced. Again, this increase may be quite acceptable from an operational standpoint, and need not impact or substantially impact QoS of the first system.
- the second satellite system (MSV satellite system) is assumed to be using a Wideband Code Division Multiple Access (W-CDMA) waveform (5 MHz carrier bandwidth) to communicate with radioterminals on its return service links, while using a Wideband Code Division Multiplexed (W-CDM) waveform (also of 5 MHz carrier bandwidth) to communicate with radioterminals on its forward service links.
- W-CDMA Wideband Code Division Multiple Access
- W-CDM Wideband Code Division Multiplexed
- MET denotes Mobile Earth Terminal and is used synonymously with the term radioterminal or terminal;
- LHCP denotes Left Hand Circular Polarization;
- RHCP denotes Right Hand Circular Polarization; and, as is identified by row 7 of Table 3, a MET of the first satellite system (Inmarsat system), such as MET 120 (see FIG. 2 ) is assumed to receive information using a substantially RHCP configured antenna (which is typically the case for Inmarsat METs), and therefore, the first satellite (Inmarsat satellite or satellite 100 ) is transmitting information on substantially RHCP, while the second satellite (MSV satellite or satellite 200 ) is transmitting information to MET 220 using substantially LHCP.
- a 4 dB LHCP to RHCP discrimination is assumed in the calculation of Table 3 (row 7) reflecting an assumed coupling mismatch between a forward link waveform of the second satellite and an antenna of a MET that is operative with the first satellite system.
- a MET of the second satellite system (MSV system) is assumed to radiate substantially linearly-polarized electromagnetic energy
- a satellite of the first system is assumed configured to receive substantially RHCP electromagnetic energy.
- EIRP denotes Equivalent Isotropic Radiated Power.
- FIG. 2 is a schematic diagram of satellite radioterminal systems and methods according to other embodiments of the present invention.
- satellite radioterminal communications frequency sharing systems and methods according to other embodiments of the present invention include a plurality of first radioterminals 120 that communicate with a first satellite radioterminal communications system including a first satellite 100 over a first satellite radioterminal frequency band f 1 at a first aggregate effective isotropic radiated power EIRP 1 .
- a plurality of second radioterminals 220 communicate with a second satellite radioterminal communications system including a second satellite 200 over the first satellite radioterminal frequency band f 1 in a footprint 240 at a second aggregate effective isotropic radiated power EIRP 2 that is less than the first aggregate effective isotropic radiated power (EIRP 2 ⁇ EIRP 1 ).
- the second aggregate effective isotropic radiated power can be sufficiently less than the first aggregate effective isotropic radiated power so as to increase aggregate noise that is seen by the first satellite radioterminal communications system by an amount that does not substantially change QoS of the first satellite radioterminal communications system. In some embodiments, this increase may be less than about 3.5%.
- the second radioterminals 220 also communicate terrestrially with at least one ancillary terrestrial component 230 over the first satellite radioterminal frequency band f 1 in the footprint 240 .
- the second aggregate effective isotropic radiated power and an aggregate effective isotropic radiated power of the at least one ancillary terrestrial component 230 are sufficiently less than the first aggregate effective isotropic radiated power, so as to increase noise that is seen by the first satellite radioterminal communications system, for example by the first satellite 100 , by an amount that does not substantially change, and in some embodiments, does not change, QoS of the first satellite radioterminal communications system.
- the aggregate noise may increase by less than about 6.75%.
- FIGS. 1 and 2 may be combined according to other embodiments of the present invention.
- embodiments of the present invention have been described above primarily in connection with satellite radioterminal communications frequency sharing systems, analogous radioterminal frequency sharing methods may be provided.
- the relatively high antenna gain g 2 of the second satellite 200 and the relatively high EIRP 1 of the first radioterminals 120 may potentially create interference by the first radioterminals 120 to the second satellite radioterminal communications system.
- This potential interference may be reduced or eliminated using interference canceling techniques that are described in U.S. Pat. No. 6,684,057 and/or the U.S. Patent Application Publications cited above, and/or using other interference reduction techniques.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
- This application claims the benefit of provisional Application No. 60/502,787, filed Sep. 11, 2003, entitled Systems and Methods for Inter-System Sharing of Satellite Communications Frequencies Within a Common Footprint, the disclosure of which is hereby incorporated herein by reference in its entirety as if set forth fully herein.
- This invention relates to radioterminal communications systems and methods, and more particularly to terrestrial and satellite radioterminal communications systems and methods.
- Satellite radioterminal communications systems and methods are widely used for radioterminal communications. Satellite radioterminal communications systems and methods generally employ at least one space-based component, such as one or more satellites, that is/are configured to wirelessly communicate with a plurality of satellite radioterminals.
- A satellite radioterminal communications system or method may utilize a single antenna beam covering an entire area served by the system. Alternatively, in cellular satellite radioterminal communications systems and methods, multiple beams are provided, each of which can serve distinct geographical areas in the overall service region, to collectively serve an overall satellite footprint. Thus, a cellular architecture similar to that used in conventional terrestrial cellular radioterminal systems and methods can be implemented in cellular satellite-based systems and methods. The satellite typically communicates with radioterminals over a bidirectional communications pathway, with radioterminal communication signals being communicated from the satellite to the radioterminal over a downlink or forward link, and from the radioterminal to the satellite over an uplink or return link.
- The overall design and operation of cellular satellite radioterminal systems and methods are well known to those having skill in the art, and need not be described further herein. Moreover, as used herein, the term “radioterminal” includes cellular and/or satellite radioterminals with or without a multi-line display; Personal Communications System (PCS) terminals that may combine a radioterminal with data processing, facsimile and/or data communications capabilities; Personal Digital Assistants (PDA) that can include a radio frequency transceiver and a pager, Internet/Intranet access, Web browser, organizer, calendar and/or a global positioning system (GPS) receiver; and/or conventional laptop and/or palmtop computers or other appliances, which include a radio frequency transceiver. As used herein, the term “radioterminal” also includes any other radiating user device/equipment/source that may have time-varying or fixed geographic coordinates, and may be portable, transportable, installed in a vehicle (aeronautical, maritime, or land-based), or situated and/or configured to operate locally and/or in a distributed fashion at any other location(s) on earth and/or in space. A “radioterminal” also may be referred to herein as a “radiotelephone,” “terminal” or “wireless user device”.
- Terrestrial networks can enhance cellular satellite radioterminal system availability, efficiency and/or economic viability by terrestrially reusing at least some of the frequency bands that are allocated to cellular satellite radioterminal systems. In particular, it is known that it may be difficult for cellular satellite radioterminal systems to reliably serve densely populated areas, because the satellite signal may be blocked by high-rise structures and/or may not penetrate into buildings. As a result, the satellite spectrum may be underutilized or unutilized in such areas. The terrestrial reuse of the satellite system frequencies can reduce or eliminate this potential problem.
- Moreover, the capacity of the overall system may be increased by the introduction of terrestrial frequency reuse of the satellite system frequencies, since terrestrial frequency reuse may be much denser than that of a satellite-only system. In fact, capacity may be enhanced where it may be mostly needed, i.e., in densely populated urban/industrial/commercial areas. As a result, the overall system may become more economically viable, as it may be able to serve more effectively and reliably a larger subscriber base.
- U.S. Pat. No. 6,684,057, to Karabinis, entitled Systems and Methods for Terrestrial Reuse of Cellular Satellite Frequency Spectrum, the disclosure of which is hereby incorporated herein by reference in its entirety as if set forth fully herein, describes that a satellite frequency can be reused terrestrially by an ancillary terrestrial network even within the same satellite cell, using interference cancellation techniques. In particular, a system according to some embodiments of U.S. Pat. No. 6,684,057 includes a space-based component that is configured to receive wireless communications from a first radiotelephone in a satellite footprint over a satellite radiotelephone frequency band, and an ancillary terrestrial network that is configured to receive wireless communications from a second radiotelephone in the satellite footprint over the satellite radiotelephone frequency band. The space-based component also receives the wireless communications from the second radiotelephone in the satellite footprint over the satellite radiotelephone frequency band as interference, along with the wireless communications that are received from the first radiotelephone in the satellite footprint over the satellite radiotelephone frequency band. An interference reducer is responsive to the space-based component and to the ancillary terrestrial network that is configured to reduce the interference from the wireless communications that are received by the space-based component from the first radiotelephone in the satellite footprint over the satellite radiotelephone frequency band, using the wireless communications that are received by the ancillary terrestrial network from the second radiotelephone in the satellite footprint over the satellite radiotelephone frequency band.
- United States Patent Application Publication No. 2003/0054761 A1, published Mar. 20, 2003 to Karabinis, entitled Spatial Guardbands for Terrestrial Reuse of Satellite Frequencies, the disclosure of which is hereby incorporated herein by reference in its entirety as if set forth fully herein, describes satellite radiotelephone systems that include a space-based component that is configured to provide wireless radiotelephone communications in a satellite footprint over a satellite radiotelephone frequency band. The satellite footprint is divided into a plurality of satellite cells, in which satellite radiotelephone frequencies of the satellite radiotelephone frequency band are spatially reused. An ancillary terrestrial network is configured to terrestrially reuse at least one of the satellite radiotelephone frequencies that is used in a satellite cell in the satellite footprint, outside the cell and in some embodiments separated therefrom by a spatial guardband. The spatial guardband may be sufficiently large to reduce or prevent interference between the at least one of the satellite radiotelephone frequencies that is used in the satellite cell in the satellite footprint, and the at least one of the satellite radiotelephone frequencies that is terrestrially reused outside the satellite cell and separated therefrom by the spatial guardband. The spatial guardband may be about half a radius of a satellite cell in width.
- Satellite radioterminal communications systems and methods that may employ terrestrial reuse of satellite frequencies are also described in Published U.S. Patent Application Nos. US 2003/0054760 to Karabinis, entitled Systems and Methods for Terrestrial Reuse of Cellular Satellite Frequency Spectrum; US 2003/0054814 to Karabinis et al., entitled Systems and Methods for Monitoring Terrestrially Reused Satellite Frequencies to Reduce Potential Interference; US 2003/0054762 to Karabinis, entitled Multi-Band/Multi-Mode Satellite Radiotelephone Communications Systems and Methods; US 2003/0153267 to Karabinis, entitled Wireless Communications Systems and Methods Using Satellite-Linked Remote Terminal Interface Subsystems; US 2003/0224785 to Karabinis, entitled Systems and Methods for Reducing Satellite Feeder Link Bandwidth/Carriers In Cellular Satellite Systems; US 2002/0041575 to Karabinis et al., entitled Coordinated Satellite-Terrestrial Frequency Reuse; US 2002/0090942 to Karabinis et al., entitled Integrated or Autonomous System and Method of Satellite-Terrestrial Frequency Reuse Using Signal Attenuation and/or Blockage, Dynamic Assignment of Frequencies and/or Hysteresis; US 2003/0068978 to Karabinis et al., entitled Space-Based Network Architectures for Satellite Radiotelephone Systems; US 2003/0143949 to Karabinis, entitled Filters for Combined Radiotelephone/GPS Terminals; US 2003/0153308 to Karabinis, entitled Staggered Sectorization for Terrestrial Reuse of Satellite Frequencies; and US 2003/0054815 to Karabinis, entitled Methods and Systems for Modifying Satellite Antenna Cell Patterns In Response to Terrestrial Reuse of Satellite Frequencies, the disclosures of all of which are hereby incorporated herein by reference in their entirety as if set forth fully herein.
- As satellite radioterminal communications systems and methods become more widely used, the satellite radioterminal spectrum may become more crowded. As is well known to those having skill in the art, the downlink L-band satellite radioterminal spectrum ranges from 1525-1559 MHz, and the uplink L-band satellite spectrum ranges from 1626.5-1660.5 MHz. Inter- and intra-government relationships have allocated this frequency spectrum among multiple satellite radioterminal communications systems, including that of Inmarsat, Mobile Satellite Ventures (MSV), Mexico, Russia, Search and Rescue (SAR) and Radio-At-Sea (RAS). In allocating this spectrum, it is known to allow two satellite communications systems to share a common frequency when they cover geographically spaced-apart footprints (inter-satellite footprint sharing of frequencies).
- It may be desirable for a satellite communications system to include multiple large, continuous bands of spectrum, for example up to 5 MHz or more continuous bands of spectrum, so as to allow, for example, wideband technologies, such as Wideband CDMA (WCDMA), to be used. Unfortunately, the present spectrum allocations to each of the L-band systems cited above include many small frequency band slices, and may not include any, or may only include a small number of, frequency bands that are 5 MHz or more wide.
- Some embodiments of the present invention allow two satellite radioterminal communications systems to use the same frequency or frequencies in geographically overlapping footprints, without creating undue interference in a given system (inter-system interference), that is caused by the same frequency signal(s) that is/are used by the other system. In some embodiments, a first satellite radioterminal communications system provides satellite radiotelephone communications to a first set of radioterminals over a first satellite radioterminal frequency band in a first footprint, such as may be provided by a global beam and/or spot beams. A second satellite radioterminal communications system provides radioterminal communications to a second set of radioterminals that may also be responsive to ancillary terrestrial components, over at least some frequencies of the first satellite radioterminal frequency band, in a second footprint that overlaps with the first footprint. The aggregate Effective Isotropic Radiated Power (EIRP) of the second set of radioterminals and/or ancillary terrestrial components is sufficiently low, and/or the receive antenna gain of the first satellite radioterminal communications system is sufficiently low compared to the receive antenna gain of the second satellite radioterminal communications system, so as to increase the aggregate receiver noise that is seen by the first satellite system receivers by an amount that need not unduly impact the first satellite radioterminal communications system, i.e., does not substantially change (including no change) the Quality of Service (QoS) of the first satellite radioterminal communications system.
- It has been found, according to some embodiments of the present invention, that the first satellite receive antenna gain may be sufficiently low relative to the second satellite receive antenna gain, and the aggregate EIRP of the radioterminals and/or ancillary terrestrial components may be sufficiently low, so as to increase the aggregate noise that is seen by the first satellite receive antenna by an amount that need not unduly impact QoS of the first satellite radioterminal communications system. Accordingly, one or more satellite radioterminal communications frequencies may be shared by a plurality of satellite radioterminal communications systems over a geographically overlapping footprint without the need to unduly impact performance of either system. By allowing sharing of satellite radioterminal communications frequencies, relatively large continuous frequency bands may be assembled for the first and/or second satellite radiotelephone communications systems to allow, for example, WCDMA technology, or any other broadband technology, to be used.
-
FIGS. 1 and 2 are schematic diagrams of satellite radioterminal systems and methods according to embodiments of the present invention. - Specific exemplary embodiments of the invention now will be described with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, like numbers refer to like elements. It will be understood that when an element is referred to as being “connected” or “coupled” to another element, it can be directly connected or coupled to the other element or intervening elements may be present. Furthermore, “connected” or “coupled” as used herein may include wirelessly connected or coupled.
- The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless expressly stated otherwise. It will be further understood that the terms “includes,” “comprises,” “including” and/or “comprising,” when used in this specification, specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.
- Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
- It will be understood that although the terms first and second are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Thus, a first element below could be termed a second element, and similarly, a second element may be termed a first element without departing from the teachings of the present invention. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. The symbol “/” is also used as a shorthand notation for “and/or”.
-
FIG. 1 illustrates first and second satellite radioterminal communications systems that are configured for satellite radioterminal communications frequency sharing within a common footprint according to some embodiments of the present invention. Referring now toFIG. 1 , a first satellite radioterminal communications system includes afirst satellite 100 that communicates over a first satellite radioterminal frequency band f1 (that may include one or more contiguous and/or discontiguous satellite radioterminal communications frequencies) over afirst footprint 110 that may include a global beam and/or spot beams (not shown). It will be understood that the first satellite radioterminal communications system may include multiplefirst satellites 100, which are not shown for simplicity. The first satellite radioterminal communications system may be embodied, for example, in the well known Inmarsat satellite radioterminal communications system. - Still referring to
FIG. 1 , a second satellite radioterminal communications system includes asecond satellite 200 that provides satellite radioterminal communications withradioterminals 220 that may also be responsive and operative with Ancillary Terrestrial Components (ATCs) 230 over the first satellite radioterminal frequency band f1 in asecond footprint 210, such as a spot beam footprint, that at least partially overlaps thefirst footprint 110, using a second satellite receive antenna gain g2 that is higher than a first satellite receive antenna gain g1 of the first satellite radioterminal system. In some embodiments, at least about 20 dB gain difference is present. It will be understood that the second satellite radioterminal system may include more than onesecond satellite 200, and more than one spot beam, and may communicate with large numbers ofradioterminals 220 and/or ancillaryterrestrial components 230. Moreover, as used herein, thefootprint 110 may be any footprint that is larger than thesecond footprint 210 and, in some embodiments, may span up to a hemisphere of the globe. The second satellite radioterminal communications system may be embodied, for example, in a satellite radioterminal communications system that is provided by Mobile Satellite Ventures (MSV), the assignee of the present invention, that is described, for example, in any or all the above-cited U.S. Pat. No. 6,684,057 and U.S. Patent Application Publications. - Still referring to
FIG. 1 , the gain g1 of the receive antenna of thefirst satellite 100 may be sufficiently small relative to the gain g2 of the receive antenna of thesecond satellite 200, such that relatively low EIRP may be radiated by the radioterminals 220 and/orATCs 230 of the second satellite system. It has been found, according to some embodiments of the present invention, that the relatively low EIRP of theradioterminals 220 and/orATCs 230, and the relatively low gain g1 of the receive antenna of thefirst satellite 100 can allow the same frequency band f1 to be used in a geographically overlapping area, such as the area of thesecond footprint 210, without unduly increasing an equivalent noise that is seen by the receive antenna of thefirst satellite 100, i.e., without substantially changing (or changing at all) the QoS of the first satellite radioterminal system. Accordingly, the low sensitivity of the global beam and/or spot beam(s) of thefirst satellite 100 relative to the power level transmitted by the radioterminals 220 and/orATCs 230 can reduce the interference that is seen by the first satellite radioterminal system to an acceptable level. - It will be understood by those having skill in the art that the above discussion has primarily focused on reducing the uplink interference, from the
radioterminals 220 and/orATCs 230, to thesatellite 100. The uplink interference from the radioterminals of the first satellite system to the satellite receivers of the second satellite system also may be reduced, for example, by using interference-reducing systems or methods, such as are described in Provisional patent application Ser. No. 60/490,993, entitled Intra- and/or Inter-System Interference Reducing Systems and Methods for Satellite Communications Systems to the present inventor Karabinis et al., filed Jul. 30, 2003, and U.S. patent application Ser. No. 10/890,758 to Karabinis et al., entitled Intra- and/or Inter-System Interference Reducing Systems and Methods for Satellite Communications Systems, filed Jul. 14, 2004, the disclosures of which are hereby incorporated herein by reference in their entirety as if set forth fully herein. Other interference-reducing techniques also may be used. - Moreover, in the downlink, interference also may be reduced based on the inherent discrimination of the spot beams and/or on the inherent discrimination that may be provided by the spatial separation between the first and
second satellites - As a specific example, Table 1 provides an analysis of the impact of a spot beam of the second satellite system on an uplink of a global-beam of the first satellite system. In the example of Table 1, the first satellite system is the Inmarsat satellite system and the second satellite system is the MSV satellite system.
TABLE 1 PARAMETER UNITS VALUE Illustrative MSV Terminal EIRP dBW −13 MSV Carrier Bandwidth MHz 5 (illustrative of W-CDMA) MSV Terminal EIRP Density dBW/Hz −80 Illustrative Number of users (Codes) dB 21.1 per carrier ((128) Illustrative System-Wide Carrier Reuse dB 18.1 (64-fold); MSV System Illustrative Average EIRP Reduction dB 2 due to Power Control Illustrative Average EIRP Reduction dB 3 due to Voice Activity Illustrative Linear to RHCP dB 1.4 Discrimination Approximate Free-Space dB 188.5 Propagation Loss Illustrative Global dBi 21 Beam Gain Aggregate EIRP Density at dBW/Hz −214.7 Global Beam Satellite Receiver Boltzmann's Constant dBW/ −228.6 Hz · ° K Illustrative Global Beam ° K 700 Noise Temperature Global Beam Noise Density dBW/Hz −200.15 Aggregate Percent Noise % 3.5 Increase (ΔT/T)
As shown in Table 1, an aggregate percent noise increase of only 3.5% may be produced on a satellite receiver of an Inmarsat global beam due to MSV's system-wide satellite operations ofradioterminals 220. - Table 2 provides an analysis on the impact of radioterminals operative with ancillary
terrestrial components 230 on a satellite receiver of Inmarsat's global beam. As shown in Table 2, a 3.25% aggregate percent noise increase may be produced.TABLE 2 PARAMETER UNITS VALUE Illustrative MSV Terminal EIRP dBW −13 MSV Carrier Bandwidth MHz 5 (illustrative of W-CDMA) MSV Terminal EIRP Density dBW/Hz −80 Illustrative number of users (Codes) dB 57.9 Supported by a single Carrier as the carrier is used and reused ATC-Wide (616,595) Aggregate EIRP Density dBW/Hz −22.1 Emitted ATC-Wide Illustrative Average EIRP Reduction dB 20 due to Power Control Illustrative Average EIRP Reduction dB 1 due to Voice Activity Illustrative Linear to dB 1.4 RHCP Discrimination Approximate Free-Space dB 188.5 Propagation Loss Illustrative Environmental Blockage dB 3 (due to urban clutter) Illustrative Global dBi 21 Beam Gain Aggregate EIRP Density at dBW/Hz −215 Global Beam Satellite Receiver Boltzmann's Constant dBW/ −228.6 Hz · ° K Global Beam Noise Temperature ° K 700 Global Beam Noise Density dBW/Hz −200.15 Aggregate Percent Noise % 3.25 Increase (ΔT/T)
As seen from the illustrative example analyses presented in Tables 1 and 2, the combined aggregate effect of MSV's satellite and ancillary terrestrial operations on an uplink satellite receiver of a firstglobal beam satellite 100 is:
(ΔT/T)TOTAL=(ΔT/T)SAT+(ΔT/T)ATC=3.5+3.25=6.75%
This quantity may be quite acceptable from an operational standpoint, and need not impact or substantially impact QoS. - From the downlink standpoint, the
Inmarsat satellite beam 110 that may be impacted from spectrum sharing with MSV's (second) satellite system, may be serving maritime users. As such, the second satellite system may be designed so as not to deploy the shared spectrum over any or at least some of itssatellite beams 210 that are formed on or close to waterways. In some embodiments, a separation of at least two widths of a spot beam may be maintained between a waterway and the locations where thesecond satellite system 200 deploys the shared spectrum over its forward satellite spots beams. This can afford significant discrimination (for example, 25 dB of spot beam discrimination) relative to a maritime first satellite system radioterminal that may also be using the shared frequencies. Moreover, the ancillaryterrestrial components 230 can reuse the shared forward link spectrum far enough away from waterways so that the aggregate effect of the ATCs on the receiver of a maritime radioterminal of the first system can be negligible (for example, less than 1% aggregate noise increase). An example downlink analysis, where the first system is an Inmarsat system and the second system is an MSV system is provided in Table 3. As shown, a 5% aggregate noise increase is produced. Again, this increase may be quite acceptable from an operational standpoint, and need not impact or substantially impact QoS of the first system.TABLE 3 PARAMETER UNITS VALUE Illustrative MSV Satellite EIRP dBW 45.7 per User (per Code) Carrier Bandwidth (illustrative of a MHz 5 W-CDM waveform) Illustrative number of users dB 15.1 (Codes) per Carrier (32) Carrier EIRP Density dBW/Hz −6.2 Approximate Free-Space dB 188.5 Propagation Loss Illustrative MSV Spot Beam dB 25 Discrimination in Direction of Inmarsat MET ( MET 120relative to spot beam 210) Illustrative LHCP to dB 4 RHCP Discrimination Illustrative Voice Activity dB 3 Illustrative Power Control dB 2 Illustrative Antenna Gain of dBi 0 Inmarsat MET in Direction of MSV Satellite (gain of MET 120 toward satellite 200) Illustrative System-Wide frequency dB 12.1 Reuse by MSV (16) Aggregate EIRP Density at dBW/Hz −216.6 Inmarsat MET Receiver Boltzmann's Constant dBW/ −228.6 Hz · ° K Illustrative Inmarsat MET dB° K 25 Noise Temperature Inmarsat MET Noise Density dBW/Hz −203.6 Aggregate Percent Noise % 5 Increase (ΔT/T) - In the illustrative calculations presented above, in Tables 1 through 3, the second satellite system (MSV satellite system) is assumed to be using a Wideband Code Division Multiple Access (W-CDMA) waveform (5 MHz carrier bandwidth) to communicate with radioterminals on its return service links, while using a Wideband Code Division Multiplexed (W-CDM) waveform (also of 5 MHz carrier bandwidth) to communicate with radioterminals on its forward service links. However, any other waveform type with characteristics similar, or substantially similar, to the assumed W-CDMA/W-CDM waveform (in EIRP level, carrier bandwidth, number of codes, and/or frequency reuse, etc.) may have been used without changing, or substantially changing, the conclusions of Tables 1 through 3. The term “MET” as used in Tables 1 through 3, denotes Mobile Earth Terminal and is used synonymously with the term radioterminal or terminal; the term “LHCP” denotes Left Hand Circular Polarization; the term “RHCP” denotes Right Hand Circular Polarization; and, as is identified by row 7 of Table 3, a MET of the first satellite system (Inmarsat system), such as MET 120 (see
FIG. 2 ) is assumed to receive information using a substantially RHCP configured antenna (which is typically the case for Inmarsat METs), and therefore, the first satellite (Inmarsat satellite or satellite 100) is transmitting information on substantially RHCP, while the second satellite (MSV satellite or satellite 200) is transmitting information toMET 220 using substantially LHCP. Thus, a 4 dB LHCP to RHCP discrimination is assumed in the calculation of Table 3 (row 7) reflecting an assumed coupling mismatch between a forward link waveform of the second satellite and an antenna of a MET that is operative with the first satellite system. Furthermore, a MET of the second satellite system (MSV system) is assumed to radiate substantially linearly-polarized electromagnetic energy, and a satellite of the first system is assumed configured to receive substantially RHCP electromagnetic energy. In addition, as used in Tables 1 through 3, the term EIRP denotes Equivalent Isotropic Radiated Power. -
FIG. 2 is a schematic diagram of satellite radioterminal systems and methods according to other embodiments of the present invention. As shown inFIG. 2 , satellite radioterminal communications frequency sharing systems and methods according to other embodiments of the present invention include a plurality offirst radioterminals 120 that communicate with a first satellite radioterminal communications system including afirst satellite 100 over a first satellite radioterminal frequency band f1 at a first aggregate effective isotropic radiated power EIRP1. A plurality ofsecond radioterminals 220 communicate with a second satellite radioterminal communications system including asecond satellite 200 over the first satellite radioterminal frequency band f1 in afootprint 240 at a second aggregate effective isotropic radiated power EIRP2 that is less than the first aggregate effective isotropic radiated power (EIRP2<EIRP1). As was described above in connection withFIG. 1 , the second aggregate effective isotropic radiated power can be sufficiently less than the first aggregate effective isotropic radiated power so as to increase aggregate noise that is seen by the first satellite radioterminal communications system by an amount that does not substantially change QoS of the first satellite radioterminal communications system. In some embodiments, this increase may be less than about 3.5%. - In other embodiments, as also shown in
FIG. 2 , thesecond radioterminals 220 also communicate terrestrially with at least one ancillaryterrestrial component 230 over the first satellite radioterminal frequency band f1 in thefootprint 240. In some embodiments ofFIG. 2 , the second aggregate effective isotropic radiated power and an aggregate effective isotropic radiated power of the at least one ancillaryterrestrial component 230 are sufficiently less than the first aggregate effective isotropic radiated power, so as to increase noise that is seen by the first satellite radioterminal communications system, for example by thefirst satellite 100, by an amount that does not substantially change, and in some embodiments, does not change, QoS of the first satellite radioterminal communications system. In other embodiments, the aggregate noise may increase by less than about 6.75%. - It also will be understood that embodiments of
FIGS. 1 and 2 may be combined according to other embodiments of the present invention. Moreover, although embodiments of the present invention have been described above primarily in connection with satellite radioterminal communications frequency sharing systems, analogous radioterminal frequency sharing methods may be provided. - Finally, it also will be understood that the relatively high antenna gain g2 of the
second satellite 200 and the relatively high EIRP1 of thefirst radioterminals 120 may potentially create interference by thefirst radioterminals 120 to the second satellite radioterminal communications system. This potential interference may be reduced or eliminated using interference canceling techniques that are described in U.S. Pat. No. 6,684,057 and/or the U.S. Patent Application Publications cited above, and/or using other interference reduction techniques. - In the drawings and specification, there have been disclosed embodiments of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being set forth in the following claims.
Claims (46)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/932,810 US7113743B2 (en) | 2003-09-11 | 2004-09-02 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
CA2544567A CA2544567C (en) | 2003-09-11 | 2004-09-03 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
PCT/US2004/028713 WO2005027358A2 (en) | 2003-09-11 | 2004-09-03 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
EP04783075A EP1665831A4 (en) | 2003-09-11 | 2004-09-03 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
US11/457,605 US7925209B2 (en) | 2003-09-11 | 2006-07-14 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
US12/495,181 US8045975B2 (en) | 2003-09-11 | 2009-06-30 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
US13/238,480 US8238819B2 (en) | 2003-09-11 | 2011-09-21 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50278703P | 2003-09-11 | 2003-09-11 | |
US10/932,810 US7113743B2 (en) | 2003-09-11 | 2004-09-02 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/457,605 Continuation US7925209B2 (en) | 2003-09-11 | 2006-07-14 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
Publications (2)
Publication Number | Publication Date |
---|---|
US20050064813A1 true US20050064813A1 (en) | 2005-03-24 |
US7113743B2 US7113743B2 (en) | 2006-09-26 |
Family
ID=34316534
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/932,810 Active 2024-09-06 US7113743B2 (en) | 2003-09-11 | 2004-09-02 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
US11/457,605 Active 2027-05-30 US7925209B2 (en) | 2003-09-11 | 2006-07-14 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
US12/495,181 Active 2024-12-30 US8045975B2 (en) | 2003-09-11 | 2009-06-30 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
US13/238,480 Active US8238819B2 (en) | 2003-09-11 | 2011-09-21 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/457,605 Active 2027-05-30 US7925209B2 (en) | 2003-09-11 | 2006-07-14 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
US12/495,181 Active 2024-12-30 US8045975B2 (en) | 2003-09-11 | 2009-06-30 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
US13/238,480 Active US8238819B2 (en) | 2003-09-11 | 2011-09-21 | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
Country Status (4)
Country | Link |
---|---|
US (4) | US7113743B2 (en) |
EP (1) | EP1665831A4 (en) |
CA (1) | CA2544567C (en) |
WO (1) | WO2005027358A2 (en) |
Cited By (76)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030054762A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Multi-band/multi-mode satellite radiotelephone communications systems and methods |
US20030149986A1 (en) * | 1999-08-10 | 2003-08-07 | Mayfield William W. | Security system for defeating satellite television piracy |
US20030153308A1 (en) * | 2001-09-14 | 2003-08-14 | Karabinis Peter D. | Staggered sectorization for terrestrial reuse of satellite frequencies |
US20040023658A1 (en) * | 2000-08-02 | 2004-02-05 | Karabinis Peter D | Coordinated satellite-terrestrial frequency reuse |
US20040121727A1 (en) * | 2001-09-14 | 2004-06-24 | Karabinis Peter D. | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode |
US20040142660A1 (en) * | 2001-09-14 | 2004-07-22 | Churan Gary G. | Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates |
US20040192395A1 (en) * | 2003-03-24 | 2004-09-30 | Karabinis Peter D. | Co-channel wireless communication methods and systems using nonsymmetrical alphabets |
US20040192200A1 (en) * | 2003-03-24 | 2004-09-30 | Karabinis Peter D. | Satellite assisted push-to-send radioterminal systems and methods |
US20040240525A1 (en) * | 2003-05-29 | 2004-12-02 | Karabinis Peter D. | Wireless communications methods and apparatus using licensed-use system protocols with unlicensed-use access points |
US20050026606A1 (en) * | 2003-07-28 | 2005-02-03 | Karabinis Peter D. | Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference |
US20050037749A1 (en) * | 2003-07-30 | 2005-02-17 | Karabinis Peter D. | Intra-and/or inter-system interference reducing systems and methods for satellite communications systems |
US20050041619A1 (en) * | 2003-08-22 | 2005-02-24 | Karabinis Peter D. | Wireless systems, methods and devices employing forward- and/or return-link carriers having different numbers of sub-band carriers |
US20050079816A1 (en) * | 2000-08-02 | 2005-04-14 | Karabinis Peter D. | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US20050136836A1 (en) * | 2003-07-30 | 2005-06-23 | Karabinis Peter D. | Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems |
US20050170834A1 (en) * | 2003-05-16 | 2005-08-04 | Santanu Dutta | Systems and methods for handover between space based and terrestrial radioterminal communications |
US20050208890A1 (en) * | 2001-09-14 | 2005-09-22 | Mobile Satellite Ventures, Lp | Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference |
US20050221757A1 (en) * | 2002-05-28 | 2005-10-06 | Mobile Satellite Ventures, Lp | Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems |
US20050227618A1 (en) * | 2004-03-22 | 2005-10-13 | Karabinis Peter D | Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with diversity operation |
US20050239399A1 (en) * | 2004-04-21 | 2005-10-27 | Karabinis Peter D | Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods |
US20050239404A1 (en) * | 2004-04-07 | 2005-10-27 | Karabinis Peter D | Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods |
US20050239457A1 (en) * | 2004-04-20 | 2005-10-27 | Levin Lon C | Extraterrestrial communications systems and methods including ancillary extraterrestrial components |
US20050239403A1 (en) * | 2004-04-12 | 2005-10-27 | Karabinis Peter D | Systems and methods with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network |
US20050245192A1 (en) * | 2001-09-14 | 2005-11-03 | Mobile Satellite Ventures, Lp | Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications |
US20050260947A1 (en) * | 2004-05-18 | 2005-11-24 | Karabinis Peter D | Satellite communications systems and methods using radiotelephone location-based beamforming |
US20050260984A1 (en) * | 2004-05-21 | 2005-11-24 | Mobile Satellite Ventures, Lp | Systems and methods for space-based use of terrestrial cellular frequency spectrum |
US20050282542A1 (en) * | 2001-09-14 | 2005-12-22 | Mobile Satellite Ventures, Lp | Systems and methods for terrestrial use of cellular satellite frequency spectrum |
US20050288011A1 (en) * | 2004-06-25 | 2005-12-29 | Santanu Dutta | Methods of ground based beamforming and on-board frequency translation and related systems |
US20060040657A1 (en) * | 2001-09-14 | 2006-02-23 | Atc Technologies, Llc | Space-based network architectures for satellite radiotelephone systems |
US20060040659A1 (en) * | 2001-09-14 | 2006-02-23 | Atc Technologies, Llc | Spatial guardbands for terrestrial reuse of satellite frequencies |
US20060040613A1 (en) * | 2004-08-11 | 2006-02-23 | Mobile Satellite Venturs, Lp | Satellite-band spectrum utilization for reduced or minimum interference |
US20060094352A1 (en) * | 2004-11-02 | 2006-05-04 | Karabinis Peter D | Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations |
US20060094420A1 (en) * | 2004-11-02 | 2006-05-04 | Karabinis Peter D | Multi frequency band/multi air interface/multi spectrum reuse cluster size/multi cell size satellite radioterminal communicaitons systems and methods |
US20060105707A1 (en) * | 2004-11-16 | 2006-05-18 | Mobile Satellite Ventures, Lp | Satellite communications systems, components and methods for operating shared satellite gateways |
US20060111041A1 (en) * | 2001-09-14 | 2006-05-25 | Karabinis Peter D | Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods |
US20060111056A1 (en) * | 2004-11-19 | 2006-05-25 | Santanu Dutta | Electronic antenna beam steering using ancillary receivers and related methods |
US20060135070A1 (en) * | 2004-12-16 | 2006-06-22 | Atc Technologies, Llc | Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals |
US20060135060A1 (en) * | 2001-09-14 | 2006-06-22 | Atc Technologies, Llc | Methods and systems for configuring satellite antenna cell patterns in response to terrestrial use of satellite frequencies |
US20060165120A1 (en) * | 2005-01-27 | 2006-07-27 | Karabinis Peter D | Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes |
US20060189309A1 (en) * | 2005-02-22 | 2006-08-24 | Good Alexander H | Reusing frequencies of a fixed and/or mobile communications system |
US20060189275A1 (en) * | 2005-02-22 | 2006-08-24 | Karabinis Peter D | Satellites using inter-satellite links to create indirect feeder link paths |
US20060189274A1 (en) * | 2005-02-22 | 2006-08-24 | Karabinis Peter D | Satellite communications systems and methods using diverse polarizations |
US20060205347A1 (en) * | 2005-03-14 | 2006-09-14 | Karabinis Peter D | Satellite communications systems and methods with distributed and/or centralized architecture including ground-based beam forming |
US20060205367A1 (en) * | 2005-03-08 | 2006-09-14 | Atc Technologies, Llc | Methods, radioterminals, and ancillary terrestrial components for communicating using spectrum allocated to another satellite operator |
US20060211419A1 (en) * | 2005-03-15 | 2006-09-21 | Karabinis Peter D | Methods and systems providing adaptive feeder links for ground based beam forming and related systems and satellites |
US20060211452A1 (en) * | 2002-12-12 | 2006-09-21 | Atc Technologies, Llc | Terrestrial base stations and operating methods for increasing capacity and/or quality of service of terrestrial cellular and satellite systems using terrestrial reception of satellite band frequencies |
US20060217070A1 (en) * | 2005-03-11 | 2006-09-28 | Atc Technologies, Llc | Modification of transmission values to compensate for interference in a satellite down-link communications |
US20060233147A1 (en) * | 2004-12-07 | 2006-10-19 | Mobile Satellite Ventures, Lp | Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments |
US20060252368A1 (en) * | 2001-09-14 | 2006-11-09 | Karabinis Peter D | Staggered sectorization for terrestrial reuse of satellite frequencies |
US20060276129A1 (en) * | 2005-03-15 | 2006-12-07 | Karabinis Peter D | Intra-system and/or inter-system reuse of feeder link frequencies including interference suppression systems and methods |
US20060292990A1 (en) * | 2005-06-21 | 2006-12-28 | Karabinis Peter D | Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction |
US20070010246A1 (en) * | 2005-07-05 | 2007-01-11 | Churan Gary G | Methods, Apparatus and Computer Program Products for Joint Decoding of Access Probes in a CDMA Communications System |
US20070015460A1 (en) * | 2005-06-22 | 2007-01-18 | Karabinis Peter D | Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements |
US20070021059A1 (en) * | 2005-07-20 | 2007-01-25 | Atc Technologies, Llc | Frequency-Dependent Filtering for Wireless Communications Transmitters |
US20070026867A1 (en) * | 2005-07-29 | 2007-02-01 | Atc Technologies, Llc | Satellite Communications Apparatus and Methods Using Asymmetrical Forward and Return Link Frequency Reuse |
US7174127B2 (en) | 1999-08-10 | 2007-02-06 | Atc Technologies, Llc | Data communications systems and methods using different wireless links for inbound and outbound data |
US20070037514A1 (en) * | 2005-08-09 | 2007-02-15 | Atc Technologies, Llc | Satellite communications systems and methods using substantially co-located feeder link antennas |
US20070045220A1 (en) * | 2005-08-08 | 2007-03-01 | Plastipak Packaging, Inc. | Plastic container |
US20070233383A1 (en) * | 2003-01-09 | 2007-10-04 | Atc Technologies, Llc | Network-Assisted Global Positioning Systems, Methods and Terminals Including Doppler Shift and Code Phase Estimates |
US20070243866A1 (en) * | 2006-04-13 | 2007-10-18 | Atc Technologies, Llc | Systems and methods for controlling base station sectors to reduce potential interference with low elevation satellites |
US20080311022A1 (en) * | 2007-06-14 | 2008-12-18 | Battelle Energy Alliance, Llc | Methods and apparatuses for ammonia production |
US20090042509A1 (en) * | 2001-09-14 | 2009-02-12 | Atc Technologies, Llc | Satellite-Band Spectrum Utilization for Reduced or Minimum Interference |
US20090131046A1 (en) * | 2000-12-04 | 2009-05-21 | Atc Technologies, Llc | Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength |
US20090186622A1 (en) * | 2000-08-02 | 2009-07-23 | Atc Technologies, Llc | Systems and Methods for Modifying Antenna Radiation Patterns of Peripheral Base Stations of a Terrestrial Network to Allow Reduced Interference |
US7664460B2 (en) | 2001-09-14 | 2010-02-16 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode |
US20100120419A1 (en) * | 2005-01-05 | 2010-05-13 | Dunmin Zheng | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
US7792069B2 (en) | 2001-09-14 | 2010-09-07 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum using different channel separation technologies in forward and reverse links |
USRE42261E1 (en) | 2002-02-12 | 2011-03-29 | Atc Technologies, Llc | Wireless communications systems and methods using satellite-linked remote terminal interface subsystems |
US20110077002A1 (en) * | 2003-09-23 | 2011-03-31 | Atc Technologies, Llc | Systems and methods for mobility management in overlaid mobile communications systems |
US7925209B2 (en) | 2003-09-11 | 2011-04-12 | Atc Technologies, Llc | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
WO2011084732A1 (en) | 2010-01-05 | 2011-07-14 | Atc Technologies, Llc | Retaining traffic channel assignments for satellite terminals to provide lower latency communication services |
US20110171986A1 (en) * | 2004-03-08 | 2011-07-14 | Levin Lon C | Communications Systems and Methods Including Emission Detection |
USRE43137E1 (en) | 2001-09-14 | 2012-01-24 | Atc Technologies, Llc | Filters for combined radiotelephone/GPS terminals |
US8380186B2 (en) | 2004-01-22 | 2013-02-19 | Atc Technologies, Llc | Satellite with different size service link antennas and radioterminal communication methods using same |
US20140233468A1 (en) * | 2012-05-18 | 2014-08-21 | Dali Systems Co. Ltd. | Method and system for soft frequency reuse in a distributed antenna system |
US20160286532A1 (en) * | 2012-01-24 | 2016-09-29 | Odyssey Wireless, Inc. | Systems/methods of preferentially using a first asset, refraining from using a second asset and providing reduced levels of interference to gps and/or satellites |
CN106954220A (en) * | 2017-05-11 | 2017-07-14 | 中国联合网络通信集团有限公司 | A kind of frequency spectrum sharing method and device |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070127553A1 (en) * | 1999-08-13 | 2007-06-07 | Viasat, Inc. | Code Reuse Multiple Access For Satellite Return Link |
US7623859B2 (en) | 2001-09-14 | 2009-11-24 | Atc Technologies, Llc | Additional aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods |
US7593691B2 (en) | 2002-02-12 | 2009-09-22 | Atc Technologies, Llc | Systems and methods for controlling a level of interference to a wireless receiver responsive to a power level associated with a wireless transmitter |
US7650379B2 (en) * | 2003-12-09 | 2010-01-19 | Viasat, Inc. | Method for channel congestion management |
US20050175019A1 (en) * | 2004-02-06 | 2005-08-11 | Tatara Systems, Inc. | Wi-Fi service delivery platform for wholesale service providers |
US7453396B2 (en) | 2005-04-04 | 2008-11-18 | Atc Technologies, Llc | Radioterminals and associated operating methods that alternate transmission of wireless communications and processing of global positioning system signals |
WO2007047370A2 (en) * | 2005-10-12 | 2007-04-26 | Atc Technologies, Llc | Systems, methods and computer program products for mobility management in hybrid satellite/terrestrial wireless communications systems |
WO2007084681A1 (en) | 2006-01-20 | 2007-07-26 | Atc Technologies, Llc | Systems and methods for satellite forward link transmit diversity using orthogonal space coding |
US8705436B2 (en) | 2006-02-15 | 2014-04-22 | Atc Technologies, Llc | Adaptive spotbeam broadcasting, systems, methods and devices for high bandwidth content distribution over satellite |
US7751823B2 (en) | 2006-04-13 | 2010-07-06 | Atc Technologies, Llc | Systems and methods for controlling a level of interference to a wireless receiver responsive to an activity factor associated with a wireless transmitter |
US9014619B2 (en) | 2006-05-30 | 2015-04-21 | Atc Technologies, Llc | Methods and systems for satellite communications employing ground-based beam forming with spatially distributed hybrid matrix amplifiers |
US8169955B2 (en) | 2006-06-19 | 2012-05-01 | Atc Technologies, Llc | Systems and methods for orthogonal frequency division multiple access (OFDMA) communications over satellite links |
WO2008027109A2 (en) | 2006-06-29 | 2008-03-06 | Atc Technologies, Llc | Apparatus and methods for mobility management in hybrid terrestrial-satellite mobile communications systems |
US8159994B2 (en) * | 2006-09-26 | 2012-04-17 | Viasat, Inc. | High data rate multiplexing satellite stream to low data rate subscriber terminals |
US20090286472A1 (en) * | 2006-09-26 | 2009-11-19 | Viasat, Inc. | Multi-Rate Downstreaming in Multiple Sub-Channel Environment |
US8538323B2 (en) * | 2006-09-26 | 2013-09-17 | Viasat, Inc. | Satellite architecture |
US8230464B2 (en) * | 2006-09-26 | 2012-07-24 | Viasat, Inc. | DOCSIS MAC chip adapted |
EP2645597B2 (en) | 2006-09-26 | 2024-03-06 | ViaSat, Inc. | Improved spot beam satellite systems |
US8107875B2 (en) | 2006-09-26 | 2012-01-31 | Viasat, Inc. | Placement of gateways near service beams |
EP2074715B1 (en) | 2006-10-03 | 2013-04-24 | ViaSat, Inc. | Forward satellite link with sub-channels |
US7995515B2 (en) * | 2006-10-03 | 2011-08-09 | Viasat, Inc. | Upstream resource optimization |
US8060082B2 (en) * | 2006-11-14 | 2011-11-15 | Globalstar, Inc. | Ancillary terrestrial component services using multiple frequency bands |
US8031646B2 (en) | 2007-05-15 | 2011-10-04 | Atc Technologies, Llc | Systems, methods and devices for reusing spectrum of another operator |
US8064824B2 (en) | 2007-07-03 | 2011-11-22 | Atc Technologies, Llc | Systems and methods for reducing power robbing impact of interference to a satellite |
US20090289839A1 (en) * | 2007-09-26 | 2009-11-26 | Viasat, Inc | Dynamic Sub-Channel Sizing |
US7978135B2 (en) | 2008-02-15 | 2011-07-12 | Atc Technologies, Llc | Antenna beam forming systems/methods using unconstrained phase response |
US8433241B2 (en) | 2008-08-06 | 2013-04-30 | Atc Technologies, Llc | Systems, methods and devices for overlaid operations of satellite and terrestrial wireless communications systems |
US8411798B2 (en) * | 2008-11-05 | 2013-04-02 | Viasat, Inc. | Reducing receiver power dissipation |
US8193975B2 (en) | 2008-11-12 | 2012-06-05 | Atc Technologies | Iterative antenna beam forming systems/methods |
US7969923B2 (en) | 2008-11-14 | 2011-06-28 | Dbsd Satellite Services G.P. | Asymmetric TDD in flexible use spectrum |
KR101151168B1 (en) * | 2008-11-18 | 2012-06-01 | 한국전자통신연구원 | NGSO Communication Apparatus for extending operation time and reducing number of satellite using ATC, ATC and Method for operating thereof |
US8339308B2 (en) | 2009-03-16 | 2012-12-25 | Atc Technologies Llc | Antenna beam forming systems, methods and devices using phase adjusted least squares beam forming |
US8036098B2 (en) * | 2009-04-20 | 2011-10-11 | Intel Corporation | Wireless network and method for adaptive opportunistic clustering for interference alignment in wireless networks |
US8520561B2 (en) | 2009-06-09 | 2013-08-27 | Atc Technologies, Llc | Systems, methods and network components that provide different satellite spot beam return carrier groupings and reuse patterns |
CA2769828C (en) | 2009-09-28 | 2017-04-04 | Atc Technologies, Llc | Systems and methods for adaptive interference cancellation beamforming |
US10110288B2 (en) | 2009-11-04 | 2018-10-23 | Atc Technologies, Llc | Frequency division duplex (FDD) return link transmit diversity systems, methods and devices using forward link side information |
US8660482B2 (en) * | 2010-10-14 | 2014-02-25 | Space Systems/Loral, Llc | Broadband satellite with dual frequency conversion and bandwidth aggregation |
US10397920B2 (en) * | 2016-01-22 | 2019-08-27 | Space Systems/Loral, Llc | Satellite diversity |
US10476582B1 (en) | 2018-01-17 | 2019-11-12 | Comsat, Inc. | Wideband streaming L-band (WISL) methods and systems |
US10972191B2 (en) * | 2018-05-22 | 2021-04-06 | Asia Satellite Telecommunications Company Limited | Uplink interference geolocation method and system for high throughput satellite |
CN112152696B (en) * | 2019-06-29 | 2022-10-28 | 亚洲卫星有限公司 | Uplink interference geographic positioning method and system for high-throughput satellite |
CN111538059B (en) * | 2020-05-11 | 2022-11-11 | 东华大学 | Self-adaptive rapid dynamic positioning system and method based on improved Boltzmann machine |
Citations (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5736959A (en) * | 1991-10-28 | 1998-04-07 | Teledesic Corporation | Earth-fixed cell beam management for satellite communication system using dielectic lens-focused scanning beam antennas |
US5765098A (en) * | 1995-01-02 | 1998-06-09 | Agence Spatiale Europeenne | Method and system for transmitting radio signals between a fixed terrestrial station and user mobile terminals via a network of satellites |
US5926758A (en) * | 1996-08-26 | 1999-07-20 | Leo One Ip, L.L.C. | Radio frequency sharing methods for satellite systems |
US6011951A (en) * | 1997-08-22 | 2000-01-04 | Teledesic Llc | Technique for sharing radio frequency spectrum in multiple satellite communication systems |
US6128488A (en) * | 1995-06-12 | 2000-10-03 | Alcatel N.V. | Non-geostationary satellite communication systems, and station and terminal thereof |
US6269242B1 (en) * | 1999-08-18 | 2001-07-31 | Motorola, Inc. | Dynamic beam fill-in system and method therefor |
US20010018327A1 (en) * | 1997-06-02 | 2001-08-30 | Hughes Electronics Corporation | Method and system for providing satellite coverage using fixed spot beams and scanned spot beams |
US6339707B1 (en) * | 1997-06-02 | 2002-01-15 | Hughes Electronics Corporation | Method and system for providing wideband communications to mobile users in a satellite-based network |
US20020041575A1 (en) * | 2000-08-02 | 2002-04-11 | Mobile Satellite Ventures Llc | Coordinated satellite-terrestrial frequency reuse |
US20020066102A1 (en) * | 2000-11-29 | 2002-05-30 | Chapman Lawrence N. | Backwards compatible real-time program guide capacity increase |
US20020090942A1 (en) * | 2000-08-02 | 2002-07-11 | Mobile Satellite Ventures Llc | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US20030034422A1 (en) * | 2000-01-07 | 2003-02-20 | The Boeing Company | Method for limiting interference between satellite communications systems |
US20030054760A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum |
US20030054814A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference |
US20030054815A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies |
US20030054761A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Spatial guardbands for terrestrial reuse of satellite frequencies |
US20030054762A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Multi-band/multi-mode satellite radiotelephone communications systems and methods |
US20030068978A1 (en) * | 2001-09-14 | 2003-04-10 | Karabinis Peter D. | Space-based network architectures for satellite radiotelephone systems |
US20030073436A1 (en) * | 2001-09-14 | 2003-04-17 | Karabinis Peter D. | Additional systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference |
US20030090412A1 (en) * | 2001-11-09 | 2003-05-15 | Sudhakar Rao | Antenna system for multiple orbits and multiple areas |
US20030143949A1 (en) * | 2001-09-14 | 2003-07-31 | Karabinis Peter D. | Filters for combined radiotelephone/GPS terminals |
US20030153267A1 (en) * | 2002-02-12 | 2003-08-14 | Karabinis Peter D. | Wireless communications systems and methods using satellite-linked remote terminal interface subsystems |
US20030153308A1 (en) * | 2001-09-14 | 2003-08-14 | Karabinis Peter D. | Staggered sectorization for terrestrial reuse of satellite frequencies |
US20030203733A1 (en) * | 2002-04-29 | 2003-10-30 | Etherware, Llc | Method and system for providing broadband mobile access from geostationary satellites to platforms using small, low profile antennas |
US20030224785A1 (en) * | 2002-05-28 | 2003-12-04 | Karabinis Peter D. | Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems |
US20040110467A1 (en) * | 1999-01-07 | 2004-06-10 | Hughes Electronics Corporation | Method and apparatus for providing wideband services using medium and low earth orbit satellites |
Family Cites Families (185)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US54815A (en) * | 1866-05-15 | Improved self-rocking cradle | ||
US164701A (en) * | 1875-06-22 | Improvement in door-checks | ||
US272369A (en) * | 1883-02-13 | Seth wheelee | ||
US164700A (en) * | 1875-06-22 | Improvement in the | ||
US135058A (en) * | 1873-01-21 | Improvement in steam blow-pipes | ||
US208890A (en) * | 1878-10-15 | Improvement in machines for reducing wood to paper-pulp | ||
US227618A (en) * | 1880-05-18 | Under-garment | ||
US201449A (en) * | 1878-03-19 | Improvement in drill-grinders | ||
US136836A (en) * | 1873-03-18 | Improvement in table-leaf supports | ||
US239399A (en) * | 1881-03-29 | pridmore | ||
US239403A (en) * | 1881-03-29 | Feedeeick m | ||
US142660A (en) * | 1873-09-09 | Improvement in steam-engines | ||
US192395A (en) * | 1877-06-26 | Half his eight to a | ||
US599345A (en) * | 1898-02-22 | Sand-oistrsbuting device | ||
US153308A (en) * | 1874-07-21 | Improvement in boxes | ||
US282542A (en) * | 1883-08-07 | Cooking-utensil | ||
US94420A (en) * | 1869-08-31 | Improved sash-holder | ||
US94352A (en) * | 1869-08-31 | Zachariah b | ||
US135060A (en) * | 1873-01-21 | Improvement in wheels for vehicles | ||
US245192A (en) * | 1881-08-02 | Vehicle-pole attachment | ||
US192293A (en) * | 1877-06-19 | Improvement in fastening devices for furniture | ||
US192200A (en) * | 1877-06-19 | Improvement in window-screens | ||
US177465A (en) * | 1876-05-16 | Improvement in corn-planters | ||
US102158A (en) * | 1870-04-19 | Nathaniel wiley rich | ||
US146979A (en) * | 1874-02-03 | Improvement in hose-couplings | ||
US181786A (en) * | 1876-09-05 | Improvement in cockle-separators | ||
US105707A (en) * | 1870-07-26 | Improvement in wood pavements | ||
US3815A (en) * | 1844-11-09 | Cotton-press | ||
US18327A (en) * | 1857-10-06 | Manufacture of metallic squares | ||
US260984A (en) * | 1882-07-11 | Car-coupling | ||
US22625A (en) * | 1859-01-18 | Mode of operating window-blinds | ||
US260947A (en) * | 1882-07-11 | Device for leveling tables | ||
US149986A (en) * | 1874-04-21 | Improvement in wheelwrights machines | ||
US54762A (en) * | 1866-05-15 | Improved chair | ||
US239404A (en) * | 1881-03-29 | stevenson | ||
US135070A (en) * | 1873-01-21 | Improvement in cultivators | ||
US239457A (en) * | 1881-03-29 | Paper-bag machine | ||
US265273A (en) * | 1882-10-03 | Underground cable for street-car propulsion | ||
US122408A (en) * | 1872-01-02 | Improvement in alloys for preventing friction in machinery | ||
US111041A (en) * | 1871-01-17 | Improvement in hay-tedders | ||
US68978A (en) * | 1867-09-17 | Lewis goodwin and samuel a | ||
US5303286A (en) | 1991-03-29 | 1994-04-12 | Space Systems/Loral, Inc. | Wireless telephone/satellite roaming system |
US4689625A (en) * | 1984-11-06 | 1987-08-25 | Martin Marietta Corporation | Satellite communications system and method therefor |
US4901307A (en) * | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
US5327572A (en) * | 1990-03-06 | 1994-07-05 | Motorola, Inc. | Networked satellite and terrestrial cellular radiotelephone systems |
US5878329A (en) * | 1990-03-19 | 1999-03-02 | Celsat America, Inc. | Power control of an integrated cellular communications system |
US5835857A (en) | 1990-03-19 | 1998-11-10 | Celsat America, Inc. | Position determination for reducing unauthorized use of a communication system |
US5073900A (en) * | 1990-03-19 | 1991-12-17 | Mallinckrodt Albert J | Integrated cellular communications system |
US5446756A (en) * | 1990-03-19 | 1995-08-29 | Celsat America, Inc. | Integrated cellular communications system |
US6067442A (en) * | 1991-10-10 | 2000-05-23 | Globalstar L.P. | Satellite communications system having distributed user assignment and resource assignment with terrestrial gateways |
US5526404A (en) * | 1991-10-10 | 1996-06-11 | Space Systems/Loral, Inc. | Worldwide satellite telephone system and a network coordinating gateway for allocating satellite and terrestrial gateway resources |
CA2105710A1 (en) | 1992-11-12 | 1994-05-13 | Raymond Joseph Leopold | Network of hierarchical communication systems and method therefor |
US6157811A (en) | 1994-01-11 | 2000-12-05 | Ericsson Inc. | Cellular/satellite communications system with improved frequency re-use |
US5619503A (en) * | 1994-01-11 | 1997-04-08 | Ericsson Inc. | Cellular/satellite communications system with improved frequency re-use |
US5511233A (en) * | 1994-04-05 | 1996-04-23 | Celsat America, Inc. | System and method for mobile communications in coexistence with established communications systems |
JPH09510596A (en) | 1994-06-08 | 1997-10-21 | エイチイー・ホールディングス・インコーポレーテッド・ディー ビーエー・ヒューズ・エレクトロニクス | Apparatus and method for hybrid network access |
US5584046A (en) | 1994-11-04 | 1996-12-10 | Cornell Research Foundation, Inc. | Method and apparatus for spectrum sharing between satellite and terrestrial communication services using temporal and spatial synchronization |
AU700251B2 (en) | 1995-06-06 | 1998-12-24 | Globalstar L.P. | Satellite repeater diversity resource management system |
US5619525A (en) * | 1995-06-06 | 1997-04-08 | Globalstar L.P. | Closed loop power control for low earth orbit satellite communications system |
US6240124B1 (en) * | 1995-06-06 | 2001-05-29 | Globalstar L.P. | Closed loop power control for low earth orbit satellite communications system |
US5781540A (en) * | 1995-06-30 | 1998-07-14 | Hughes Electronics | Device and method for communicating in a mobile satellite system |
EP0755163B1 (en) | 1995-07-20 | 2004-01-02 | Ntt Mobile Communications Network Inc. | Mobile communication system using efficient service area expansion scheme |
EP0762669B1 (en) | 1995-08-18 | 2011-06-15 | Ntt Mobile Communications Network Inc. | Communication mode switching method for mobile station |
US5991345A (en) | 1995-09-22 | 1999-11-23 | Qualcomm Incorporated | Method and apparatus for diversity enhancement using pseudo-multipath signals |
US5930708A (en) | 1996-03-21 | 1999-07-27 | Trw Inc. | Communications satellite router-formatter |
US6449461B1 (en) * | 1996-07-15 | 2002-09-10 | Celsat America, Inc. | System for mobile communications in coexistence with communication systems having priority |
US6072768A (en) * | 1996-09-04 | 2000-06-06 | Globalstar L.P. | Automatic satellite/terrestrial mobile terminal roaming system and method |
GB2317074B (en) | 1996-09-09 | 1998-10-28 | I Co Global Communications | Communications apparatus and method |
GB2317303B (en) * | 1996-09-09 | 1998-08-26 | I Co Global Communications | Communications apparatus and method |
US5761605A (en) * | 1996-10-11 | 1998-06-02 | Northpoint Technology, Ltd. | Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals |
US5896558A (en) | 1996-12-19 | 1999-04-20 | Globalstar L.P. | Interactive fixed and mobile satellite network |
US6091933A (en) * | 1997-01-03 | 2000-07-18 | Globalstar L.P. | Multiple satellite system power allocation by communication link optimization |
JPH10261987A (en) * | 1997-03-19 | 1998-09-29 | Fujitsu Ltd | Two-layer constitution satellite communication system and its geostationary satellite |
US5937332A (en) * | 1997-03-21 | 1999-08-10 | Ericsson, Inc. | Satellite telecommunications repeaters and retransmission methods |
EP0869628A1 (en) * | 1997-04-01 | 1998-10-07 | ICO Services Ltd. | Interworking between telecommunications networks |
GB2324218A (en) * | 1997-04-09 | 1998-10-14 | Ico Services Ltd | Satellite acquisition in navigation system |
US5884142A (en) * | 1997-04-15 | 1999-03-16 | Globalstar L.P. | Low earth orbit distributed gateway communication system |
US6134437A (en) * | 1997-06-13 | 2000-10-17 | Ericsson Inc. | Dual-mode satellite/cellular phone architecture with physically separable mode |
US6085094A (en) * | 1997-08-29 | 2000-07-04 | Nortel Networks Corporation | Method for optimizing spectral re-use |
US6052586A (en) * | 1997-08-29 | 2000-04-18 | Ericsson Inc. | Fixed and mobile satellite radiotelephone systems and methods with capacity sharing |
US5907541A (en) * | 1997-09-17 | 1999-05-25 | Lockheed Martin Corp. | Architecture for an integrated mobile and fixed telecommunications system including a spacecraft |
US6101385A (en) * | 1997-10-09 | 2000-08-08 | Globalstar L.P. | Satellite communication service with non-congruent sub-beam coverage |
US6052560A (en) * | 1997-10-15 | 2000-04-18 | Ericsson Inc | Satellite system utilizing a plurality of air interface standards and method employing same |
US6157834A (en) | 1997-12-29 | 2000-12-05 | Motorola, Inc. | Terrestrial and satellite cellular network interoperability |
US6418147B1 (en) * | 1998-01-21 | 2002-07-09 | Globalstar Lp | Multiple vocoder mobile satellite telephone system |
US6735437B2 (en) * | 1998-06-26 | 2004-05-11 | Hughes Electronics Corporation | Communication system employing reuse of satellite spectrum for terrestrial communication |
US6775251B1 (en) * | 1998-09-17 | 2004-08-10 | Globalstar L.P. | Satellite communication system providing multi-gateway diversity and improved satellite loading |
US6198730B1 (en) * | 1998-10-13 | 2001-03-06 | Motorola, Inc. | Systems and method for use in a dual mode satellite communications system |
US6198921B1 (en) * | 1998-11-16 | 2001-03-06 | Emil Youssefzadeh | Method and system for providing rural subscriber telephony service using an integrated satellite/cell system |
EP1059826A4 (en) | 1998-12-07 | 2005-08-03 | Mitsubishi Electric Corp | Mobile communication device and mobile communication system |
US6253080B1 (en) * | 1999-07-08 | 2001-06-26 | Globalstar L.P. | Low earth orbit distributed gateway communication system |
US7174127B2 (en) | 1999-08-10 | 2007-02-06 | Atc Technologies, Llc | Data communications systems and methods using different wireless links for inbound and outbound data |
US20030149986A1 (en) | 1999-08-10 | 2003-08-07 | Mayfield William W. | Security system for defeating satellite television piracy |
US6522865B1 (en) * | 1999-08-10 | 2003-02-18 | David D. Otten | Hybrid satellite communications system |
AU2001234488A1 (en) | 2000-01-19 | 2001-07-31 | Ericsson Inc. | Diversity system method in a satellite telecommunication network |
GB2365677A (en) | 2000-02-29 | 2002-02-20 | Ico Services Ltd | Satellite communications with satellite routing according to channels assignment |
WO2001082503A1 (en) | 2000-04-20 | 2001-11-01 | Ico Services Ltd. | Collision avoidance of rach signals in a tdma satellite communication system |
JP3609375B2 (en) | 2000-05-01 | 2005-01-12 | 三菱電機株式会社 | Connection control method for mobile communication system |
US20040203393A1 (en) | 2002-03-13 | 2004-10-14 | Xiang Chen | System and method for offsetting channel spectrum to reduce interference between two communication networks |
US8265637B2 (en) | 2000-08-02 | 2012-09-11 | Atc Technologies, Llc | Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference |
US7558568B2 (en) | 2003-07-28 | 2009-07-07 | Atc Technologies, Llc | Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference |
US6628919B1 (en) * | 2000-08-09 | 2003-09-30 | Hughes Electronics Corporation | Low-cost multi-mission broadband communications payload |
US20020058477A1 (en) * | 2000-09-28 | 2002-05-16 | Chapelle Michael De La | Return link design for PSD limited mobile satellite communication systems |
US7792488B2 (en) | 2000-12-04 | 2010-09-07 | Atc Technologies, Llc | Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength |
US20030003815A1 (en) | 2000-12-20 | 2003-01-02 | Yoshiko Yamada | Communication satellite/land circuits selection communications system |
US6950625B2 (en) | 2001-02-12 | 2005-09-27 | Ico Services Limited | Communications apparatus and method |
ATE297615T1 (en) | 2001-02-12 | 2005-06-15 | Ico Services Ltd | APPARATUS AND METHOD FOR MOBILE COMMUNICATIONS IN DUAL EARTH-SATELLITE MODE |
US6850732B2 (en) * | 2001-03-30 | 2005-02-01 | Wengen Wireless Llc | Scalable satellite data communication system that provides incremental global broadband service using earth-fixed cells |
US6714760B2 (en) | 2001-05-10 | 2004-03-30 | Qualcomm Incorporated | Multi-mode satellite and terrestrial communication device |
US7664460B2 (en) | 2001-09-14 | 2010-02-16 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode |
US7447501B2 (en) | 2001-09-14 | 2008-11-04 | Atc Technologies, Llc | Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference |
US7792069B2 (en) | 2001-09-14 | 2010-09-07 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum using different channel separation technologies in forward and reverse links |
US8270898B2 (en) | 2001-09-14 | 2012-09-18 | Atc Technologies, Llc | Satellite-band spectrum utilization for reduced or minimum interference |
US7155340B2 (en) | 2001-09-14 | 2006-12-26 | Atc Technologies, Llc | Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates |
US7890098B2 (en) | 2001-09-14 | 2011-02-15 | Atc Technologies, Llc | Staggered sectorization for terrestrial reuse of satellite frequencies |
US7603117B2 (en) | 2001-09-14 | 2009-10-13 | Atc Technologies, Llc | Systems and methods for terrestrial use of cellular satellite frequency spectrum |
US7113778B2 (en) | 2001-09-14 | 2006-09-26 | Atc Technologies, Llc | Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods |
US7593724B2 (en) | 2001-09-14 | 2009-09-22 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode |
US7623859B2 (en) | 2001-09-14 | 2009-11-24 | Atc Technologies, Llc | Additional aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods |
US7603081B2 (en) | 2001-09-14 | 2009-10-13 | Atc Technologies, Llc | Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications |
US7593691B2 (en) | 2002-02-12 | 2009-09-22 | Atc Technologies, Llc | Systems and methods for controlling a level of interference to a wireless receiver responsive to a power level associated with a wireless transmitter |
US8121605B2 (en) | 2002-06-27 | 2012-02-21 | Globalstar, Inc. | Resource allocation to terrestrial and satellite services |
US6931245B2 (en) * | 2002-08-09 | 2005-08-16 | Norsat International Inc. | Downconverter for the combined reception of linear and circular polarization signals from collocated satellites |
US7068975B2 (en) | 2002-11-26 | 2006-06-27 | The Directv Group, Inc. | Systems and methods for sharing uplink bandwidth among satellites in a common orbital slot |
US7092708B2 (en) | 2002-12-12 | 2006-08-15 | Atc Technologies, Llc | Systems and methods for increasing capacity and/or quality of service of terrestrial cellular and satellite systems using terrestrial reception of satellite band frequencies |
US7421342B2 (en) | 2003-01-09 | 2008-09-02 | Atc Technologies, Llc | Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates |
US6975837B1 (en) | 2003-01-21 | 2005-12-13 | The Directv Group, Inc. | Method and apparatus for reducing interference between terrestrially-based and space-based broadcast systems |
US7203490B2 (en) | 2003-03-24 | 2007-04-10 | Atc Technologies, Llc | Satellite assisted push-to-send radioterminal systems and methods |
US7444170B2 (en) | 2003-03-24 | 2008-10-28 | Atc Technologies, Llc | Co-channel wireless communication methods and systems using nonsymmetrical alphabets |
US6879829B2 (en) | 2003-05-16 | 2005-04-12 | Mobile Satellite Ventures, Lp | Systems and methods for handover between space based and terrestrial radioterminal communications, and for monitoring terrestrially reused satellite frequencies at a radioterminal to reduce potential interference |
US20040240525A1 (en) | 2003-05-29 | 2004-12-02 | Karabinis Peter D. | Wireless communications methods and apparatus using licensed-use system protocols with unlicensed-use access points |
US8670705B2 (en) | 2003-07-30 | 2014-03-11 | Atc Technologies, Llc | Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems |
US7340213B2 (en) | 2003-07-30 | 2008-03-04 | Atc Technologies, Llc | Intra- and/or inter-system interference reducing systems and methods for satellite communications systems |
US20050041619A1 (en) | 2003-08-22 | 2005-02-24 | Karabinis Peter D. | Wireless systems, methods and devices employing forward- and/or return-link carriers having different numbers of sub-band carriers |
US7113743B2 (en) | 2003-09-11 | 2006-09-26 | Atc Technologies, Llc | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
JP2007507184A (en) | 2003-09-23 | 2007-03-22 | エイティーシー・テクノロジーズ,リミテッド・ライアビリティ・カンパニー | Mobility management system and method in an overlaid mobile communication system |
US8380186B2 (en) | 2004-01-22 | 2013-02-19 | Atc Technologies, Llc | Satellite with different size service link antennas and radioterminal communication methods using same |
US7418236B2 (en) | 2004-04-20 | 2008-08-26 | Mobile Satellite Ventures, Lp | Extraterrestrial communications systems and methods including ancillary extraterrestrial components |
US7453920B2 (en) | 2004-03-09 | 2008-11-18 | Atc Technologies, Llc | Code synchronization in CDMA satellite wireless communications system using uplink channel detection |
US7933552B2 (en) | 2004-03-22 | 2011-04-26 | Atc Technologies, Llc | Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with combining operation |
US7606590B2 (en) | 2004-04-07 | 2009-10-20 | Atc Technologies, Llc | Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods |
US7636566B2 (en) | 2004-04-12 | 2009-12-22 | Atc Technologies, Llc | Systems and method with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network |
US20050239399A1 (en) | 2004-04-21 | 2005-10-27 | Karabinis Peter D | Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods |
US8265549B2 (en) | 2004-05-18 | 2012-09-11 | Atc Technologies, Llc | Satellite communications systems and methods using radiotelephone |
US20050260984A1 (en) | 2004-05-21 | 2005-11-24 | Mobile Satellite Ventures, Lp | Systems and methods for space-based use of terrestrial cellular frequency spectrum |
WO2006012348A2 (en) | 2004-06-25 | 2006-02-02 | Atc Technologies, Llc | Method and system for frequency translation on-board a communications satellite |
WO2006020793A2 (en) | 2004-08-11 | 2006-02-23 | Atc Technologies, Llc | System for reduction of interference between different communications system |
US20060094420A1 (en) | 2004-11-02 | 2006-05-04 | Karabinis Peter D | Multi frequency band/multi air interface/multi spectrum reuse cluster size/multi cell size satellite radioterminal communicaitons systems and methods |
US7639981B2 (en) | 2004-11-02 | 2009-12-29 | Atc Technologies, Llc | Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations |
WO2006055648A2 (en) | 2004-11-16 | 2006-05-26 | Atc Technologies, Llc | Satellite communications systems, components and methods for operating shared satellite gateways |
US7747229B2 (en) | 2004-11-19 | 2010-06-29 | Atc Technologies, Llc | Electronic antenna beam steering using ancillary receivers and related methods |
US7454175B2 (en) | 2004-12-07 | 2008-11-18 | Atc Technologies, Llc | Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments |
US8594704B2 (en) | 2004-12-16 | 2013-11-26 | Atc Technologies, Llc | Location-based broadcast messaging for radioterminal users |
CN101980456A (en) | 2005-01-05 | 2011-02-23 | Atc科技有限责任公司 | Adaptive beam forming with multi-user detection and interference reduction in satellite communiation systems and methods |
US7596111B2 (en) | 2005-01-27 | 2009-09-29 | Atc Technologies, Llc | Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes |
US7636546B2 (en) | 2005-02-22 | 2009-12-22 | Atc Technologies, Llc | Satellite communications systems and methods using diverse polarizations |
US7620394B2 (en) | 2005-02-22 | 2009-11-17 | Atc Technologies, Llc | Reusing frequencies of a fixed and/or mobile communications system |
US7738837B2 (en) | 2005-02-22 | 2010-06-15 | Atc Technologies, Llc | Satellites using inter-satellite links to create indirect feeder link paths |
US7756490B2 (en) | 2005-03-08 | 2010-07-13 | Atc Technologies, Llc | Methods, radioterminals, and ancillary terrestrial components for communicating using spectrum allocated to another satellite operator |
US7587171B2 (en) | 2005-03-09 | 2009-09-08 | Atc Technologies, Llc | Reducing interference in a wireless communications signal in the frequency domain |
US7796986B2 (en) | 2005-03-11 | 2010-09-14 | Atc Technologies, Llc | Modification of transmission values to compensate for interference in a satellite down-link communications |
US7627285B2 (en) | 2005-03-14 | 2009-12-01 | Atc Technologies, Llc | Satellite communications systems and methods with distributed and/or centralized architecture including ground-based beam forming |
US7634229B2 (en) | 2005-03-15 | 2009-12-15 | Atc Technologies, Llc | Intra-system and/or inter-system reuse of feeder link frequencies including interference suppression systems and methods |
WO2006099501A1 (en) | 2005-03-15 | 2006-09-21 | Atc Technologies, Llc | Methods and systems providing adaptive feeder links for ground based beam forming and related systems and satellites |
US7453396B2 (en) | 2005-04-04 | 2008-11-18 | Atc Technologies, Llc | Radioterminals and associated operating methods that alternate transmission of wireless communications and processing of global positioning system signals |
US7817967B2 (en) | 2005-06-21 | 2010-10-19 | Atc Technologies, Llc | Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction |
US7970345B2 (en) | 2005-06-22 | 2011-06-28 | Atc Technologies, Llc | Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements |
US7907944B2 (en) | 2005-07-05 | 2011-03-15 | Atc Technologies, Llc | Methods, apparatus and computer program products for joint decoding of access probes in a CDMA communications system |
US8190114B2 (en) | 2005-07-20 | 2012-05-29 | Atc Technologies, Llc | Frequency-dependent filtering for wireless communications transmitters |
US7623867B2 (en) | 2005-07-29 | 2009-11-24 | Atc Technologies, Llc | Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse |
ATE466417T1 (en) | 2005-08-09 | 2010-05-15 | Atc Tech Llc | SATELLITE COMMUNICATION SYSTEMS AND METHODS USING SUBSTANTIALLY ADJACENT RADIO CONNECTION ANTENNAS |
WO2007047370A2 (en) | 2005-10-12 | 2007-04-26 | Atc Technologies, Llc | Systems, methods and computer program products for mobility management in hybrid satellite/terrestrial wireless communications systems |
WO2007084681A1 (en) | 2006-01-20 | 2007-07-26 | Atc Technologies, Llc | Systems and methods for satellite forward link transmit diversity using orthogonal space coding |
US8705436B2 (en) | 2006-02-15 | 2014-04-22 | Atc Technologies, Llc | Adaptive spotbeam broadcasting, systems, methods and devices for high bandwidth content distribution over satellite |
WO2007100774A1 (en) | 2006-02-28 | 2007-09-07 | Atc Technologies, Llc | Systems, methods and transceivers for wireless communications over discontiguous spectrum segments |
US7751823B2 (en) | 2006-04-13 | 2010-07-06 | Atc Technologies, Llc | Systems and methods for controlling a level of interference to a wireless receiver responsive to an activity factor associated with a wireless transmitter |
US8923850B2 (en) | 2006-04-13 | 2014-12-30 | Atc Technologies, Llc | Systems and methods for controlling base station sectors to reduce potential interference with low elevation satellites |
US9014619B2 (en) | 2006-05-30 | 2015-04-21 | Atc Technologies, Llc | Methods and systems for satellite communications employing ground-based beam forming with spatially distributed hybrid matrix amplifiers |
US8169955B2 (en) | 2006-06-19 | 2012-05-01 | Atc Technologies, Llc | Systems and methods for orthogonal frequency division multiple access (OFDMA) communications over satellite links |
WO2008027109A2 (en) | 2006-06-29 | 2008-03-06 | Atc Technologies, Llc | Apparatus and methods for mobility management in hybrid terrestrial-satellite mobile communications systems |
US8060082B2 (en) | 2006-11-14 | 2011-11-15 | Globalstar, Inc. | Ancillary terrestrial component services using multiple frequency bands |
US8064824B2 (en) | 2007-07-03 | 2011-11-22 | Atc Technologies, Llc | Systems and methods for reducing power robbing impact of interference to a satellite |
US7978135B2 (en) | 2008-02-15 | 2011-07-12 | Atc Technologies, Llc | Antenna beam forming systems/methods using unconstrained phase response |
US8433241B2 (en) | 2008-08-06 | 2013-04-30 | Atc Technologies, Llc | Systems, methods and devices for overlaid operations of satellite and terrestrial wireless communications systems |
US10110288B2 (en) | 2009-11-04 | 2018-10-23 | Atc Technologies, Llc | Frequency division duplex (FDD) return link transmit diversity systems, methods and devices using forward link side information |
-
2004
- 2004-09-02 US US10/932,810 patent/US7113743B2/en active Active
- 2004-09-03 EP EP04783075A patent/EP1665831A4/en not_active Withdrawn
- 2004-09-03 WO PCT/US2004/028713 patent/WO2005027358A2/en active Search and Examination
- 2004-09-03 CA CA2544567A patent/CA2544567C/en active Active
-
2006
- 2006-07-14 US US11/457,605 patent/US7925209B2/en active Active
-
2009
- 2009-06-30 US US12/495,181 patent/US8045975B2/en active Active
-
2011
- 2011-09-21 US US13/238,480 patent/US8238819B2/en active Active
Patent Citations (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5736959A (en) * | 1991-10-28 | 1998-04-07 | Teledesic Corporation | Earth-fixed cell beam management for satellite communication system using dielectic lens-focused scanning beam antennas |
US5765098A (en) * | 1995-01-02 | 1998-06-09 | Agence Spatiale Europeenne | Method and system for transmitting radio signals between a fixed terrestrial station and user mobile terminals via a network of satellites |
US6128488A (en) * | 1995-06-12 | 2000-10-03 | Alcatel N.V. | Non-geostationary satellite communication systems, and station and terminal thereof |
US5926758A (en) * | 1996-08-26 | 1999-07-20 | Leo One Ip, L.L.C. | Radio frequency sharing methods for satellite systems |
US6339707B1 (en) * | 1997-06-02 | 2002-01-15 | Hughes Electronics Corporation | Method and system for providing wideband communications to mobile users in a satellite-based network |
US20040157554A1 (en) * | 1997-06-02 | 2004-08-12 | Hughes Electronics Corporation | Broadband communication system for mobile users in a satellite-based network |
US20010018327A1 (en) * | 1997-06-02 | 2001-08-30 | Hughes Electronics Corporation | Method and system for providing satellite coverage using fixed spot beams and scanned spot beams |
US6011951A (en) * | 1997-08-22 | 2000-01-04 | Teledesic Llc | Technique for sharing radio frequency spectrum in multiple satellite communication systems |
US20040110467A1 (en) * | 1999-01-07 | 2004-06-10 | Hughes Electronics Corporation | Method and apparatus for providing wideband services using medium and low earth orbit satellites |
US6269242B1 (en) * | 1999-08-18 | 2001-07-31 | Motorola, Inc. | Dynamic beam fill-in system and method therefor |
US20030034422A1 (en) * | 2000-01-07 | 2003-02-20 | The Boeing Company | Method for limiting interference between satellite communications systems |
US20020041575A1 (en) * | 2000-08-02 | 2002-04-11 | Mobile Satellite Ventures Llc | Coordinated satellite-terrestrial frequency reuse |
US20020090942A1 (en) * | 2000-08-02 | 2002-07-11 | Mobile Satellite Ventures Llc | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US20020066102A1 (en) * | 2000-11-29 | 2002-05-30 | Chapman Lawrence N. | Backwards compatible real-time program guide capacity increase |
US20030054815A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies |
US6684057B2 (en) * | 2001-09-14 | 2004-01-27 | Mobile Satellite Ventures, Lp | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum |
US20030054762A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Multi-band/multi-mode satellite radiotelephone communications systems and methods |
US20030068978A1 (en) * | 2001-09-14 | 2003-04-10 | Karabinis Peter D. | Space-based network architectures for satellite radiotelephone systems |
US20030073436A1 (en) * | 2001-09-14 | 2003-04-17 | Karabinis Peter D. | Additional systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference |
US20030143949A1 (en) * | 2001-09-14 | 2003-07-31 | Karabinis Peter D. | Filters for combined radiotelephone/GPS terminals |
US20030054761A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Spatial guardbands for terrestrial reuse of satellite frequencies |
US20030153308A1 (en) * | 2001-09-14 | 2003-08-14 | Karabinis Peter D. | Staggered sectorization for terrestrial reuse of satellite frequencies |
US20030054760A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum |
US20030054814A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference |
US20030090412A1 (en) * | 2001-11-09 | 2003-05-15 | Sudhakar Rao | Antenna system for multiple orbits and multiple areas |
US20030153267A1 (en) * | 2002-02-12 | 2003-08-14 | Karabinis Peter D. | Wireless communications systems and methods using satellite-linked remote terminal interface subsystems |
US20030203733A1 (en) * | 2002-04-29 | 2003-10-30 | Etherware, Llc | Method and system for providing broadband mobile access from geostationary satellites to platforms using small, low profile antennas |
US20030224785A1 (en) * | 2002-05-28 | 2003-12-04 | Karabinis Peter D. | Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems |
Cited By (189)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070129019A1 (en) * | 1999-08-10 | 2007-06-07 | Atc Technologies, Llc | Internet communications systems and methods using different wireless links for inbound and outbound data |
US20030149986A1 (en) * | 1999-08-10 | 2003-08-07 | Mayfield William W. | Security system for defeating satellite television piracy |
US7174127B2 (en) | 1999-08-10 | 2007-02-06 | Atc Technologies, Llc | Data communications systems and methods using different wireless links for inbound and outbound data |
US8265637B2 (en) | 2000-08-02 | 2012-09-11 | Atc Technologies, Llc | Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference |
US20050181786A1 (en) * | 2000-08-02 | 2005-08-18 | Karabinis Peter D. | Coordinated satellite-terrestrial frequency reuse |
US20060211371A1 (en) * | 2000-08-02 | 2006-09-21 | Atc Technologies, Llc | Coordinated satellite-terrestrial frequency reuse |
US20090186622A1 (en) * | 2000-08-02 | 2009-07-23 | Atc Technologies, Llc | Systems and Methods for Modifying Antenna Radiation Patterns of Peripheral Base Stations of a Terrestrial Network to Allow Reduced Interference |
US20070021060A1 (en) * | 2000-08-02 | 2007-01-25 | Atc Technologies, Llc | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US7907893B2 (en) | 2000-08-02 | 2011-03-15 | Atc Technologies, Llc | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US20060194576A1 (en) * | 2000-08-02 | 2006-08-31 | Atc Technologies, Llc | Coordinated Satellite-Terrestrial Frequency Reuse |
US20040023658A1 (en) * | 2000-08-02 | 2004-02-05 | Karabinis Peter D | Coordinated satellite-terrestrial frequency reuse |
US7706746B2 (en) | 2000-08-02 | 2010-04-27 | Atc Technologies, Llc | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US20050079816A1 (en) * | 2000-08-02 | 2005-04-14 | Karabinis Peter D. | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US20100009677A1 (en) * | 2000-08-02 | 2010-01-14 | Atc Technologies, Llc | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US20050164701A1 (en) * | 2000-08-02 | 2005-07-28 | Karabinis Peter D. | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US8369775B2 (en) | 2000-08-02 | 2013-02-05 | Atc Technologies, Llc | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US7149526B2 (en) | 2000-08-02 | 2006-12-12 | Atc Technologies, Llc | Coordinated satellite-terrestrial frequency reuse |
US7831251B2 (en) | 2000-08-02 | 2010-11-09 | Atc Technologies, Llc | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US20050272369A1 (en) * | 2000-08-02 | 2005-12-08 | Karabinis Peter D | Coordinated satellite-terrestrial frequency reuse |
US20050265273A1 (en) * | 2000-08-02 | 2005-12-01 | Karabinis Peter D | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
US7792488B2 (en) | 2000-12-04 | 2010-09-07 | Atc Technologies, Llc | Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength |
US20090131046A1 (en) * | 2000-12-04 | 2009-05-21 | Atc Technologies, Llc | Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength |
US7890098B2 (en) | 2001-09-14 | 2011-02-15 | Atc Technologies, Llc | Staggered sectorization for terrestrial reuse of satellite frequencies |
US7437123B2 (en) | 2001-09-14 | 2008-10-14 | Atc Technologies, Llc | Space-based network architectures for satellite radiotelephone systems |
US20050245192A1 (en) * | 2001-09-14 | 2005-11-03 | Mobile Satellite Ventures, Lp | Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications |
US20060252368A1 (en) * | 2001-09-14 | 2006-11-09 | Karabinis Peter D | Staggered sectorization for terrestrial reuse of satellite frequencies |
US7218931B2 (en) | 2001-09-14 | 2007-05-15 | Atc Technologies, Llc | Satellite radiotelephone systems providing staggered sectorization for terrestrial reuse of satellite frequencies and related methods and radiotelephone systems |
US7295807B2 (en) | 2001-09-14 | 2007-11-13 | Atc Technologies, Llc | Methods and systems for configuring satellite antenna cell patterns in response to terrestrial use of satellite frequencies |
US20030153308A1 (en) * | 2001-09-14 | 2003-08-14 | Karabinis Peter D. | Staggered sectorization for terrestrial reuse of satellite frequencies |
US20050282542A1 (en) * | 2001-09-14 | 2005-12-22 | Mobile Satellite Ventures, Lp | Systems and methods for terrestrial use of cellular satellite frequency spectrum |
US20050208890A1 (en) * | 2001-09-14 | 2005-09-22 | Mobile Satellite Ventures, Lp | Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference |
US20060040657A1 (en) * | 2001-09-14 | 2006-02-23 | Atc Technologies, Llc | Space-based network architectures for satellite radiotelephone systems |
US20060040659A1 (en) * | 2001-09-14 | 2006-02-23 | Atc Technologies, Llc | Spatial guardbands for terrestrial reuse of satellite frequencies |
US20070072545A1 (en) * | 2001-09-14 | 2007-03-29 | Atc Technologies, Llc | Space-Based Network Architectures for Satellite Radiotelephone Systems |
US7181161B2 (en) | 2001-09-14 | 2007-02-20 | Atc Technologies, Llc | Multi-band/multi-mode satellite radiotelephone communications systems and methods |
US7792069B2 (en) | 2001-09-14 | 2010-09-07 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum using different channel separation technologies in forward and reverse links |
US7603081B2 (en) | 2001-09-14 | 2009-10-13 | Atc Technologies, Llc | Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications |
US20060111041A1 (en) * | 2001-09-14 | 2006-05-25 | Karabinis Peter D | Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods |
US8068828B2 (en) | 2001-09-14 | 2011-11-29 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode |
US20030054762A1 (en) * | 2001-09-14 | 2003-03-20 | Karabinis Peter D. | Multi-band/multi-mode satellite radiotelephone communications systems and methods |
US20060135060A1 (en) * | 2001-09-14 | 2006-06-22 | Atc Technologies, Llc | Methods and systems for configuring satellite antenna cell patterns in response to terrestrial use of satellite frequencies |
US20090305696A1 (en) * | 2001-09-14 | 2009-12-10 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode |
US7447501B2 (en) | 2001-09-14 | 2008-11-04 | Atc Technologies, Llc | Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference |
USRE43137E1 (en) | 2001-09-14 | 2012-01-24 | Atc Technologies, Llc | Filters for combined radiotelephone/GPS terminals |
US7706826B2 (en) | 2001-09-14 | 2010-04-27 | Atc Technologies, Llc | Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods |
US7599656B2 (en) | 2001-09-14 | 2009-10-06 | Atc Technologies, Llc | Spatial guardbands for terrestrial reuse of satellite frequencies |
US20090042509A1 (en) * | 2001-09-14 | 2009-02-12 | Atc Technologies, Llc | Satellite-Band Spectrum Utilization for Reduced or Minimum Interference |
US7593724B2 (en) | 2001-09-14 | 2009-09-22 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode |
US7664460B2 (en) | 2001-09-14 | 2010-02-16 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode |
US8270898B2 (en) | 2001-09-14 | 2012-09-18 | Atc Technologies, Llc | Satellite-band spectrum utilization for reduced or minimum interference |
US20040142660A1 (en) * | 2001-09-14 | 2004-07-22 | Churan Gary G. | Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates |
US8285278B2 (en) | 2001-09-14 | 2012-10-09 | Atc Technologies, Llc | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode |
US20040121727A1 (en) * | 2001-09-14 | 2004-06-24 | Karabinis Peter D. | Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode |
USRE42261E1 (en) | 2002-02-12 | 2011-03-29 | Atc Technologies, Llc | Wireless communications systems and methods using satellite-linked remote terminal interface subsystems |
US20050221757A1 (en) * | 2002-05-28 | 2005-10-06 | Mobile Satellite Ventures, Lp | Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems |
USRE45107E1 (en) | 2002-07-02 | 2014-09-02 | Atc Technologies, Llc | Filters for combined radiotelephone/GPS terminals |
US20060211452A1 (en) * | 2002-12-12 | 2006-09-21 | Atc Technologies, Llc | Terrestrial base stations and operating methods for increasing capacity and/or quality of service of terrestrial cellular and satellite systems using terrestrial reception of satellite band frequencies |
US20070233383A1 (en) * | 2003-01-09 | 2007-10-04 | Atc Technologies, Llc | Network-Assisted Global Positioning Systems, Methods and Terminals Including Doppler Shift and Code Phase Estimates |
US20110201326A1 (en) * | 2003-03-24 | 2011-08-18 | Atc Technologies, Llc | Radioterminals and operating methods that receive multiple measures of information from multiple sources |
US20040192200A1 (en) * | 2003-03-24 | 2004-09-30 | Karabinis Peter D. | Satellite assisted push-to-send radioterminal systems and methods |
US8340592B2 (en) | 2003-03-24 | 2012-12-25 | Atc Technologies, Llc | Radioterminals and operating methods that receive multiple measures of information from multiple sources |
US20080119190A1 (en) * | 2003-03-24 | 2008-05-22 | Mobile Satellite Ventures, Lp | Co-channel wireless communication methods and systems using relayed wireless communications |
US20100157929A1 (en) * | 2003-03-24 | 2010-06-24 | Karabinis Peter D | Co-channel wireless communication methods and systems using relayed wireless communications |
US20040192395A1 (en) * | 2003-03-24 | 2004-09-30 | Karabinis Peter D. | Co-channel wireless communication methods and systems using nonsymmetrical alphabets |
US20100210262A1 (en) * | 2003-03-24 | 2010-08-19 | Atc Technologies, Llc | Radioterminal system servers and methods |
US8108004B2 (en) | 2003-03-24 | 2012-01-31 | Atc Technologies, Llc | Co-channel wireless communication methods and systems using relayed wireless communications |
US8170474B2 (en) | 2003-03-24 | 2012-05-01 | Atc Technologies, Llc | Satellite assisted radioterminal communications systems and methods |
US7831201B2 (en) | 2003-03-24 | 2010-11-09 | Atc Technologies, Llc | Co-channel wireless communication methods and systems using relayed wireless communications |
US20050170834A1 (en) * | 2003-05-16 | 2005-08-04 | Santanu Dutta | Systems and methods for handover between space based and terrestrial radioterminal communications |
US20040240525A1 (en) * | 2003-05-29 | 2004-12-02 | Karabinis Peter D. | Wireless communications methods and apparatus using licensed-use system protocols with unlicensed-use access points |
US20090075645A1 (en) * | 2003-07-28 | 2009-03-19 | Atc Technologies, Llc | Terrestrial Communications Networks That Transmit Using Circular Polarization |
US20050026606A1 (en) * | 2003-07-28 | 2005-02-03 | Karabinis Peter D. | Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference |
US20050037749A1 (en) * | 2003-07-30 | 2005-02-17 | Karabinis Peter D. | Intra-and/or inter-system interference reducing systems and methods for satellite communications systems |
US20050136836A1 (en) * | 2003-07-30 | 2005-06-23 | Karabinis Peter D. | Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems |
US7340213B2 (en) | 2003-07-30 | 2008-03-04 | Atc Technologies, Llc | Intra- and/or inter-system interference reducing systems and methods for satellite communications systems |
US8670705B2 (en) | 2003-07-30 | 2014-03-11 | Atc Technologies, Llc | Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems |
US20050041619A1 (en) * | 2003-08-22 | 2005-02-24 | Karabinis Peter D. | Wireless systems, methods and devices employing forward- and/or return-link carriers having different numbers of sub-band carriers |
US7925209B2 (en) | 2003-09-11 | 2011-04-12 | Atc Technologies, Llc | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
US8131293B2 (en) | 2003-09-23 | 2012-03-06 | Atc Technologies, Llc | Systems and methods for mobility management in overlaid mobile communications systems |
US7974619B2 (en) | 2003-09-23 | 2011-07-05 | Atc Technologies, Llc | Systems and methods for mobility management in overlaid mobile communications systems |
US20110077002A1 (en) * | 2003-09-23 | 2011-03-31 | Atc Technologies, Llc | Systems and methods for mobility management in overlaid mobile communications systems |
US8380186B2 (en) | 2004-01-22 | 2013-02-19 | Atc Technologies, Llc | Satellite with different size service link antennas and radioterminal communication methods using same |
US20110171986A1 (en) * | 2004-03-08 | 2011-07-14 | Levin Lon C | Communications Systems and Methods Including Emission Detection |
US8655398B2 (en) | 2004-03-08 | 2014-02-18 | Atc Technologies, Llc | Communications systems and methods including emission detection |
US20050227618A1 (en) * | 2004-03-22 | 2005-10-13 | Karabinis Peter D | Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with diversity operation |
US7933552B2 (en) | 2004-03-22 | 2011-04-26 | Atc Technologies, Llc | Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with combining operation |
US8050674B2 (en) | 2004-04-07 | 2011-11-01 | Atc Technologies, Llc | Radioterminals including satellite/hands-free interlocks and related methods |
US20050239404A1 (en) * | 2004-04-07 | 2005-10-27 | Karabinis Peter D | Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods |
US8014815B2 (en) | 2004-04-07 | 2011-09-06 | Atc Technologies, Llc | Radioterminals including satellite interlocks and related methods |
US20050239403A1 (en) * | 2004-04-12 | 2005-10-27 | Karabinis Peter D | Systems and methods with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network |
US20100048201A1 (en) * | 2004-04-12 | 2010-02-25 | Atc Technologies, Llc | Systems and methods with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network |
US8055257B2 (en) | 2004-04-12 | 2011-11-08 | Atc Technologies, Llc | Systems and methods with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network |
US7636566B2 (en) | 2004-04-12 | 2009-12-22 | Atc Technologies, Llc | Systems and method with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network |
US7418236B2 (en) | 2004-04-20 | 2008-08-26 | Mobile Satellite Ventures, Lp | Extraterrestrial communications systems and methods including ancillary extraterrestrial components |
US20050239457A1 (en) * | 2004-04-20 | 2005-10-27 | Levin Lon C | Extraterrestrial communications systems and methods including ancillary extraterrestrial components |
US20050239399A1 (en) * | 2004-04-21 | 2005-10-27 | Karabinis Peter D | Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods |
US8265549B2 (en) | 2004-05-18 | 2012-09-11 | Atc Technologies, Llc | Satellite communications systems and methods using radiotelephone |
US8238818B2 (en) | 2004-05-18 | 2012-08-07 | Atc Technologies, Llc | Satellite communications systems and methods using radiotelephone location-based beamforming |
US20090137203A1 (en) * | 2004-05-18 | 2009-05-28 | Atc Technologies, Llc | Satellite communications systems and methods using radiotelephone location-based beamforming |
US20050260947A1 (en) * | 2004-05-18 | 2005-11-24 | Karabinis Peter D | Satellite communications systems and methods using radiotelephone location-based beamforming |
US20050260984A1 (en) * | 2004-05-21 | 2005-11-24 | Mobile Satellite Ventures, Lp | Systems and methods for space-based use of terrestrial cellular frequency spectrum |
US20050288011A1 (en) * | 2004-06-25 | 2005-12-29 | Santanu Dutta | Methods of ground based beamforming and on-board frequency translation and related systems |
US7706748B2 (en) | 2004-06-25 | 2010-04-27 | Atc Technologies, Llc | Methods of ground based beamforming and on-board frequency translation and related systems |
US7957694B2 (en) | 2004-08-11 | 2011-06-07 | Atc Technologies, Llc | Satellite-band spectrum utilization for reduced or minimum interference |
US8145126B2 (en) | 2004-08-11 | 2012-03-27 | Atc Technologies, Llc | Satellite-band spectrum utilization for reduced or minimum interference |
US20060040613A1 (en) * | 2004-08-11 | 2006-02-23 | Mobile Satellite Venturs, Lp | Satellite-band spectrum utilization for reduced or minimum interference |
US20110212694A1 (en) * | 2004-08-11 | 2011-09-01 | Karabinis Peter D | Satellite-Band Spectrum Utilization For Reduced Or Minimum Interference |
US20090156154A1 (en) * | 2004-08-11 | 2009-06-18 | Atc Technologies, Llc | Satellite-band spectrum utilization using receiver filters to reduce interference |
US20060094352A1 (en) * | 2004-11-02 | 2006-05-04 | Karabinis Peter D | Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations |
US7639981B2 (en) | 2004-11-02 | 2009-12-29 | Atc Technologies, Llc | Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations |
US8369776B2 (en) | 2004-11-02 | 2013-02-05 | Atc Technologies, Llc | Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations |
US20100029269A1 (en) * | 2004-11-02 | 2010-02-04 | Atc Technologies, Llc | Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations |
US20060094420A1 (en) * | 2004-11-02 | 2006-05-04 | Karabinis Peter D | Multi frequency band/multi air interface/multi spectrum reuse cluster size/multi cell size satellite radioterminal communicaitons systems and methods |
US20060105707A1 (en) * | 2004-11-16 | 2006-05-18 | Mobile Satellite Ventures, Lp | Satellite communications systems, components and methods for operating shared satellite gateways |
US7653348B2 (en) | 2004-11-16 | 2010-01-26 | Atc Technologies, Llc | Satellite communications systems, components and methods for operating shared satellite gateways |
US7747229B2 (en) | 2004-11-19 | 2010-06-29 | Atc Technologies, Llc | Electronic antenna beam steering using ancillary receivers and related methods |
US20060111056A1 (en) * | 2004-11-19 | 2006-05-25 | Santanu Dutta | Electronic antenna beam steering using ancillary receivers and related methods |
US7454175B2 (en) | 2004-12-07 | 2008-11-18 | Atc Technologies, Llc | Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments |
US20060233147A1 (en) * | 2004-12-07 | 2006-10-19 | Mobile Satellite Ventures, Lp | Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments |
US20100041394A1 (en) * | 2004-12-16 | 2010-02-18 | Atc Technologies, Llc | Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals |
US20060135070A1 (en) * | 2004-12-16 | 2006-06-22 | Atc Technologies, Llc | Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals |
US7634234B2 (en) | 2004-12-16 | 2009-12-15 | Atc Technologies, Llc | Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals |
US7953373B2 (en) | 2004-12-16 | 2011-05-31 | Atc Technologies, Llc | Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals |
US20060135058A1 (en) * | 2004-12-16 | 2006-06-22 | Atc Technologies, Llc | Location-based broadcast messaging for radioterminal users |
US8594704B2 (en) | 2004-12-16 | 2013-11-26 | Atc Technologies, Llc | Location-based broadcast messaging for radioterminal users |
US8073394B2 (en) | 2004-12-16 | 2011-12-06 | Atc Technologies, Llc | Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals |
US20100041395A1 (en) * | 2004-12-16 | 2010-02-18 | Karabinis Peter D | Prediction of uplink interference potential generated by an ancillary terrestrial network and/or radioterminals |
US20100120419A1 (en) * | 2005-01-05 | 2010-05-13 | Dunmin Zheng | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
US7813700B2 (en) | 2005-01-05 | 2010-10-12 | Atc Technologies, Llc | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems |
US20100203884A1 (en) * | 2005-01-05 | 2010-08-12 | Dunmin Zheng | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
US8744360B2 (en) | 2005-01-05 | 2014-06-03 | Atc Technologies, Inc. | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
US20100184381A1 (en) * | 2005-01-05 | 2010-07-22 | Dunmin Zheng | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
US20100184370A1 (en) * | 2005-01-05 | 2010-07-22 | Dunmin Zheng | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
US20060165120A1 (en) * | 2005-01-27 | 2006-07-27 | Karabinis Peter D | Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes |
US7899002B2 (en) | 2005-01-27 | 2011-03-01 | Atc Technologies, Llc | Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes |
US20090296628A1 (en) * | 2005-01-27 | 2009-12-03 | Atc Technologies, Llc | Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes |
US7596111B2 (en) | 2005-01-27 | 2009-09-29 | Atc Technologies, Llc | Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes |
US7620394B2 (en) | 2005-02-22 | 2009-11-17 | Atc Technologies, Llc | Reusing frequencies of a fixed and/or mobile communications system |
US20060189275A1 (en) * | 2005-02-22 | 2006-08-24 | Karabinis Peter D | Satellites using inter-satellite links to create indirect feeder link paths |
US20060189309A1 (en) * | 2005-02-22 | 2006-08-24 | Good Alexander H | Reusing frequencies of a fixed and/or mobile communications system |
US20060189274A1 (en) * | 2005-02-22 | 2006-08-24 | Karabinis Peter D | Satellite communications systems and methods using diverse polarizations |
US7636546B2 (en) | 2005-02-22 | 2009-12-22 | Atc Technologies, Llc | Satellite communications systems and methods using diverse polarizations |
US20100015971A1 (en) * | 2005-02-22 | 2010-01-21 | Good Alexander H | Reusing frequencies of a fixed and/or mobile communications system |
US8023939B2 (en) | 2005-02-22 | 2011-09-20 | Atc Technologies, Llc | Reusing frequencies of a fixed and/or mobile communications system |
US7738837B2 (en) | 2005-02-22 | 2010-06-15 | Atc Technologies, Llc | Satellites using inter-satellite links to create indirect feeder link paths |
US7756490B2 (en) | 2005-03-08 | 2010-07-13 | Atc Technologies, Llc | Methods, radioterminals, and ancillary terrestrial components for communicating using spectrum allocated to another satellite operator |
US20060205367A1 (en) * | 2005-03-08 | 2006-09-14 | Atc Technologies, Llc | Methods, radioterminals, and ancillary terrestrial components for communicating using spectrum allocated to another satellite operator |
US20060217070A1 (en) * | 2005-03-11 | 2006-09-28 | Atc Technologies, Llc | Modification of transmission values to compensate for interference in a satellite down-link communications |
US7796986B2 (en) | 2005-03-11 | 2010-09-14 | Atc Technologies, Llc | Modification of transmission values to compensate for interference in a satellite down-link communications |
US20060205347A1 (en) * | 2005-03-14 | 2006-09-14 | Karabinis Peter D | Satellite communications systems and methods with distributed and/or centralized architecture including ground-based beam forming |
US7974575B2 (en) | 2005-03-15 | 2011-07-05 | Atc Technologies, Llc | Methods of reducing interference including applying weights to provide correction signals and related systems |
US7970346B2 (en) | 2005-03-15 | 2011-06-28 | Atc Technologies, Llc | Methods of reducing interference including calculation of weights based on errors and related systems |
US7890050B2 (en) | 2005-03-15 | 2011-02-15 | Atc Technologies, Llc | Methods of reducing interference including determination of feeder link signal error and related systems |
US20060211419A1 (en) * | 2005-03-15 | 2006-09-21 | Karabinis Peter D | Methods and systems providing adaptive feeder links for ground based beam forming and related systems and satellites |
US20060276129A1 (en) * | 2005-03-15 | 2006-12-07 | Karabinis Peter D | Intra-system and/or inter-system reuse of feeder link frequencies including interference suppression systems and methods |
US20090170429A1 (en) * | 2005-03-15 | 2009-07-02 | Atc Technologies, Llc | Methods of Reducing Interference Including Calculation of Weights Based on Errors and Related Systems |
US20090170428A1 (en) * | 2005-03-15 | 2009-07-02 | Atc Technologies, Llc | Methods of Reducing Interference Including Applying Weights to Provide Correction Signals and Related Systems |
US20090170427A1 (en) * | 2005-03-15 | 2009-07-02 | Atc Technologies, Llc | Methods of Reducing Interference Including Determination of Feeder Link Signal Error and Related Systems |
US20060292990A1 (en) * | 2005-06-21 | 2006-12-28 | Karabinis Peter D | Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction |
US7817967B2 (en) | 2005-06-21 | 2010-10-19 | Atc Technologies, Llc | Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction |
US8412126B2 (en) | 2005-06-21 | 2013-04-02 | Atc Technologies, Llc | Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction |
US7970345B2 (en) | 2005-06-22 | 2011-06-28 | Atc Technologies, Llc | Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements |
US20070015460A1 (en) * | 2005-06-22 | 2007-01-18 | Karabinis Peter D | Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements |
US7907944B2 (en) | 2005-07-05 | 2011-03-15 | Atc Technologies, Llc | Methods, apparatus and computer program products for joint decoding of access probes in a CDMA communications system |
US20070010246A1 (en) * | 2005-07-05 | 2007-01-11 | Churan Gary G | Methods, Apparatus and Computer Program Products for Joint Decoding of Access Probes in a CDMA Communications System |
US8190114B2 (en) | 2005-07-20 | 2012-05-29 | Atc Technologies, Llc | Frequency-dependent filtering for wireless communications transmitters |
US20070021059A1 (en) * | 2005-07-20 | 2007-01-25 | Atc Technologies, Llc | Frequency-Dependent Filtering for Wireless Communications Transmitters |
US20100041396A1 (en) * | 2005-07-29 | 2010-02-18 | Atc Technologies, Llc | Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse |
US7917135B2 (en) | 2005-07-29 | 2011-03-29 | Atc Technologies, Llc | Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse |
US7623867B2 (en) | 2005-07-29 | 2009-11-24 | Atc Technologies, Llc | Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse |
US20070026867A1 (en) * | 2005-07-29 | 2007-02-01 | Atc Technologies, Llc | Satellite Communications Apparatus and Methods Using Asymmetrical Forward and Return Link Frequency Reuse |
US20070045220A1 (en) * | 2005-08-08 | 2007-03-01 | Plastipak Packaging, Inc. | Plastic container |
US7831202B2 (en) | 2005-08-09 | 2010-11-09 | Atc Technologies, Llc | Satellite communications systems and methods using substantially co-located feeder link antennas |
US20070037514A1 (en) * | 2005-08-09 | 2007-02-15 | Atc Technologies, Llc | Satellite communications systems and methods using substantially co-located feeder link antennas |
US8923850B2 (en) * | 2006-04-13 | 2014-12-30 | Atc Technologies, Llc | Systems and methods for controlling base station sectors to reduce potential interference with low elevation satellites |
US20070243866A1 (en) * | 2006-04-13 | 2007-10-18 | Atc Technologies, Llc | Systems and methods for controlling base station sectors to reduce potential interference with low elevation satellites |
US9461806B2 (en) | 2006-04-13 | 2016-10-04 | Atc Technologies, Llc | Providing different transmit and/or receive modes in different sectors of a wireless base station |
US20080311022A1 (en) * | 2007-06-14 | 2008-12-18 | Battelle Energy Alliance, Llc | Methods and apparatuses for ammonia production |
WO2011084732A1 (en) | 2010-01-05 | 2011-07-14 | Atc Technologies, Llc | Retaining traffic channel assignments for satellite terminals to provide lower latency communication services |
US20160286532A1 (en) * | 2012-01-24 | 2016-09-29 | Odyssey Wireless, Inc. | Systems/methods of preferentially using a first asset, refraining from using a second asset and providing reduced levels of interference to gps and/or satellites |
US9197358B2 (en) * | 2012-05-18 | 2015-11-24 | Dali Systems Co., Ltd. | Method and system for soft frequency reuse in a distributed antenna system |
US20140233468A1 (en) * | 2012-05-18 | 2014-08-21 | Dali Systems Co. Ltd. | Method and system for soft frequency reuse in a distributed antenna system |
US9538536B2 (en) | 2012-05-18 | 2017-01-03 | Dali Systems Co. Ltd. | Method and system for soft frequency reuse in a distributed antenna system |
US9942771B2 (en) * | 2012-05-18 | 2018-04-10 | Dali Systems Co. Ltd. | Method and system for soft frequency reuse in a distributed antenna system |
US10506442B2 (en) | 2012-05-18 | 2019-12-10 | Dali Systems Co. Ltd. | Method and system for soft frequency reuse in a distributed antenna system |
US20200137582A1 (en) * | 2012-05-18 | 2020-04-30 | Dali Systems Co. Ltd. | Method and system for soft frequency reuse in a distributed antenna system |
US10841806B2 (en) * | 2012-05-18 | 2020-11-17 | Dali Wireless, Inc. | Method and system for soft frequency reuse in a distributed antenna system |
US20230300624A1 (en) * | 2012-05-18 | 2023-09-21 | Dali Wireless, Inc. | Method and system for soft frequency reuse in a distributed antenna system |
CN106954220A (en) * | 2017-05-11 | 2017-07-14 | 中国联合网络通信集团有限公司 | A kind of frequency spectrum sharing method and device |
Also Published As
Publication number | Publication date |
---|---|
WO2005027358A2 (en) | 2005-03-24 |
EP1665831A2 (en) | 2006-06-07 |
US8238819B2 (en) | 2012-08-07 |
US20060246838A1 (en) | 2006-11-02 |
EP1665831A4 (en) | 2011-08-24 |
US20090270089A1 (en) | 2009-10-29 |
US7925209B2 (en) | 2011-04-12 |
US8045975B2 (en) | 2011-10-25 |
CA2544567C (en) | 2014-05-27 |
WO2005027358A3 (en) | 2005-12-29 |
CA2544567A1 (en) | 2005-03-24 |
US20120009920A1 (en) | 2012-01-12 |
US7113743B2 (en) | 2006-09-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7113743B2 (en) | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint | |
US7558568B2 (en) | Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference | |
US9461806B2 (en) | Providing different transmit and/or receive modes in different sectors of a wireless base station | |
US8265637B2 (en) | Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference | |
EP1738491B1 (en) | Different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network | |
US7636546B2 (en) | Satellite communications systems and methods using diverse polarizations | |
CA2607301C (en) | Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse | |
US8433241B2 (en) | Systems, methods and devices for overlaid operations of satellite and terrestrial wireless communications systems | |
US20050227618A1 (en) | Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with diversity operation | |
MXPA06002783A (en) | Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MOBILE SATELLITE VENTURES, LP, VIRGINIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KARABINIS, PETER D.;REEL/FRAME:015424/0284 Effective date: 20041129 |
|
AS | Assignment |
Owner name: MOBILE SATELLITE VENTURES, LP, VIRGINIA Free format text: CORRECTION OF ASSIGNMENT RECORDS - INCORRECT SERIAL NUMBER PROVIDED, PREVIOUSLY RECORDED ON REEL/FRAME 015424/0284;ASSIGNOR:KARABINIS, PETER D.;REEL/FRAME:016767/0743 Effective date: 20041129 |
|
AS | Assignment |
Owner name: ATC TECHNOLOGIES, LLC, VIRGINIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MOBILE SATELLITE VENTURES, LP;REEL/FRAME:017026/0956 Effective date: 20051115 |
|
AS | Assignment |
Owner name: THE BANK OF NEW YORK,NEW YORK Free format text: SECURITY AGREEMENT;ASSIGNORS:ATC TECHNOLOGIES, LLC;MOBILE SATELLITE VENTURES LP;REEL/FRAME:017435/0603 Effective date: 20060330 Owner name: THE BANK OF NEW YORK, NEW YORK Free format text: SECURITY AGREEMENT;ASSIGNORS:ATC TECHNOLOGIES, LLC;MOBILE SATELLITE VENTURES LP;REEL/FRAME:017435/0603 Effective date: 20060330 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: ATC TECHNOLOGIES, LLC, VIRGINIA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:THE BANK OF NEW YORK MELLON AS COLLATERAL AGENT;REEL/FRAME:025105/0605 Effective date: 20011001 Owner name: LIGHTSQUARED FINANCE CO., VIRGINIA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:THE BANK OF NEW YORK MELLON AS COLLATERAL AGENT;REEL/FRAME:025105/0605 Effective date: 20011001 Owner name: LIGHTSQUARED LP, VIRGINIA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:THE BANK OF NEW YORK MELLON AS COLLATERAL AGENT;REEL/FRAME:025105/0605 Effective date: 20011001 |
|
AS | Assignment |
Owner name: WILMINGTON TRUST FSB, AS COLLATERAL TRUSTEE, MARYL Free format text: SECURITY AGREEMENT;ASSIGNOR:ATC TECHNOLOGIES, LLC;REEL/FRAME:025126/0120 Effective date: 20101001 |
|
AS | Assignment |
Owner name: WILMINGTON TRUST FSB, AS COLLATERAL TRUSTEE, DELAW Free format text: SECURITY AGREEMENT;ASSIGNORS:LIGHTSQUARED LP;ATC TECHNOLOGIES, LLC;LIGHTSQUARED INC. OF VIRGINIA;AND OTHERS;REEL/FRAME:026438/0603 Effective date: 20110603 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
AS | Assignment |
Owner name: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, NEW YORK Free format text: SECURITY AGREEMENT (FIRST LIEN);ASSIGNOR:ATC TECHNOLOGIES, LLC;REEL/FRAME:037573/0939 Effective date: 20151207 Owner name: JEFFERIES FINANCE LLC, NEW YORK Free format text: SECURITY AGREEMENT (SECOND LIEN);ASSIGNOR:ATC TECHNOLOGIES, LLC;REEL/FRAME:037573/0963 Effective date: 20151207 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553) Year of fee payment: 12 |
|
AS | Assignment |
Owner name: JEFFERIES FINANCE LLC, NEW YORK Free format text: SECURITY INTEREST;ASSIGNOR:ATC TECHNOLOGIES, LLC;REEL/FRAME:053755/0916 Effective date: 20200527 |
|
AS | Assignment |
Owner name: CORTLAND CAPITAL MARKET SERVICES LLC, ILLINOIS Free format text: ASSIGNMENT OF SECURITY INTEREST;ASSIGNOR:CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH;REEL/FRAME:054214/0165 Effective date: 20201022 |
|
AS | Assignment |
Owner name: ATC TECHNOLOGIES, LLC, ILLINOIS Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:JEFFERIES FINANCE LLC;REEL/FRAME:054297/0444 Effective date: 20201023 Owner name: ATC TECHNOLOGIES, LLC, ILLINOIS Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CORTLAND CAPITAL MARKET SERVICES LLC;REEL/FRAME:054297/0724 Effective date: 20201023 Owner name: LIGADO NETWORKS LLC, VIRGINIA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CORTLAND CAPITAL MARKET SERVICES LLC;REEL/FRAME:054297/0724 Effective date: 20201023 Owner name: U.S. BANK NATIONAL ASSOCIATION, OHIO Free format text: U.S. ASSIGNMENT OF AND AMENDMENT TO INTELLECTUAL PROPERTY SECURITY AGREEMENT;ASSIGNORS:JEFFERIES FINANCE LLC;LIGADO NETWORKS LLC;ATC TECHNOLOGIES, LLC;REEL/FRAME:054298/0001 Effective date: 20201023 |
|
AS | Assignment |
Owner name: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE, MINNESOTA Free format text: SECOND LIEN PATENT SECURITY AGREEMENT;ASSIGNOR:ATC TECHNOLOGIES, LLC;REEL/FRAME:054262/0207 Effective date: 20201023 Owner name: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE, MINNESOTA Free format text: FIRST LIEN PATENT SECURITY AGREEMENT;ASSIGNOR:ATC TECHNOLOGIES, LLC;REEL/FRAME:054262/0295 Effective date: 20201023 |
|
AS | Assignment |
Owner name: U.S. BANK NATIONAL ASSOCIATION, MINNESOTA Free format text: SECURITY INTEREST;ASSIGNOR:ATC TECHNOLOGIES, LLC;REEL/FRAME:062230/0806 Effective date: 20221223 |
|
AS | Assignment |
Owner name: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS SUCCESSOR COLLATERAL AGENT, MINNESOTA Free format text: U.S. ASSIGNMENT OF AND AMENDMENT TO INTELLECTUAL PROPERTY SECURITY AGREEMENTS;ASSIGNOR:U.S. BANK NATIONAL ASSOCIATION, AS EXISTING COLLATERAL AGENT;REEL/FRAME:062952/0826 Effective date: 20230302 |